Ohms Law Calculator
Enter any two inputs and click on Calculate button
How to use this Ohms Law Calculator 🤔
- There are input fields for Voltage \((V)\), Current \((I)\), Resistance \((R)\), and Power \((P)\). Enter any two inputs and click on Calculate button.
- The calculator uses the \( V = I \cdot R \)
\( P = V \cdot I \) formula, substitues given values, and calcuates the missing value(s). - A missing value is calcuated and displayed in the input field. Also, the caculation is displayed under the input section.
What is Ohm's Law
Ohm's Law is a fundamental principle in electronics and electrical engineering that states the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit. It is typically expressed as:
\[ V = I \cdot R \]
Where:
- \(V\) is the voltage in volts (V)
- \(I\) is the current in amperes (A)
- \(R\) is the resistance in ohms (Ω)
Calculating Power, Voltage, Current, and Resistance
Power (P) in an electrical circuit is given by the product of voltage and current:
\[ P = V \cdot I \]
We can rearrange Ohm's Law to solve for voltage, current, and resistance as follows:
\[ I = \frac{V}{R} \]
\[ R = \frac{V}{I} \]
\[ V = I \cdot R \]
Input and Output Combinations of the Ohms Law Calculator
Here are the input combinations available for the calculator, along with the formulas it uses to calculate the corresponding outputs.
- I Current
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( I R \)
- Power\(P = \)\( I ^{2} R \)
- V Voltage
- I Current
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Resistance\(R = \)\( \frac{ V }{ I } \)
- Power\(P = \)\( V \times I \)
- V Voltage
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ V }{ R } \)
- Power\(P = \)\( \frac{ V ^2}{ R } \)
- V Voltage
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ P }{ V } \)
- Resistance\(R = \)\( \frac{ V ^2}{ P } \)
- I Current
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \frac{ P }{ I } \)
- Resistance\(R = \)\( \frac{ P }{ I ^2} \)
- R Resistance
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \sqrt{ P \times R } \)
- Current\(I = \)\( \sqrt{ P / R } \)
Examples
Calculate voltage and power, given the current and resistance
Answer
Given:
- Current, I = 1 amps
- Resistance, R = 1000 ohms
Calculating voltage (V)...
\( V = \) \( I R \)
\( V = \) \(1\times1000\)
\( V = \) 1000 volts
Calculating power (P)...
\( P = \) \( I ^{2} R \)
\( P = \) \(1^{2} \times1000\)
\( P = \) 1000 watts
Calculate resistance and power, given the voltage and current
Answer
Given:
- Voltage, V = 12 volts
- Current, I = 0.02 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V }{ I } \)
\( R = \) \( \frac{12}{0.02} \)
\( R = \) 600 ohms
Calculating power (P)...
\( P = \) \( V \times I \)
\( P = \) \(12\times0.02\)
\( P = \) 0.24 watts
Calculate current and power, given the voltage and resistance
Answer
Given:
- Voltage, V = 230 volts
- Resistance, R = 500 ohms
Calculating current (I)...
\( I = \) \( \frac{ V }{ R } \)
\( I = \) \( \frac{230}{500} \)
\( I = \) 0.46 amps
Calculating power (P)...
\( P = \) \( \frac{ V ^2}{ R } \)
\( P = \) \( \frac{230^2}{500} \)
\( P = \) 105.8 watts
Calculate current and resistance, given the voltage and power
Answer
Given:
- Voltage, V = 230 volts
- Power, P = 1 watts
Calculating current (I)...
\( I = \) \( \frac{ P }{ V } \)
\( I = \) \( \frac{1}{230} \)
\( I = \) 0.0043 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V ^2}{ P } \)
\( R = \) \( \frac{230^2}{1} \)
\( R = \) 52900 ohms
Calculate voltage and resistance, given the current and power
Answer
Given:
- Current, I = 1 amps
- Power, P = 2 watts
Calculating voltage (V)...
\( V = \) \( \frac{ P }{ I } \)
\( V = \) \( \frac{2}{1} \)
\( V = \) 2 volts
Calculating resistance (R)...
\( R = \) \( \frac{ P }{ I ^2} \)
\( R = \) \( \frac{2}{1^2} \)
\( R = \) 2 ohms
Calculate voltage and current, given the resistance and power
Answer
Given:
- Resistance, R = 200 ohms
- Power, P = 5 watts
Calculating voltage (V)...
\( V = \) \( \sqrt{ P \times R } \)
\( V = \) \( \sqrt{5\times200} \)
\( V = \) 31.6228 volts
Calculating current (I)...
\( I = \) \( \sqrt{ P / R } \)
\( I = \) \( \sqrt{5/200} \)
\( I = \) 0.1581 amps
Input and Output Combinations of the Ohms Law Calculator
Here are the input combinations available for the calculator, along with the formulas it uses to calculate the corresponding outputs.
- I Current
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( I R \)
- Power\(P = \)\( I ^{2} R \)
- V Voltage
- I Current
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Resistance\(R = \)\( \frac{ V }{ I } \)
- Power\(P = \)\( V \times I \)
- V Voltage
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ V }{ R } \)
- Power\(P = \)\( \frac{ V ^2}{ R } \)
- V Voltage
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ P }{ V } \)
- Resistance\(R = \)\( \frac{ V ^2}{ P } \)
- I Current
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \frac{ P }{ I } \)
- Resistance\(R = \)\( \frac{ P }{ I ^2} \)
- R Resistance
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \sqrt{ P \times R } \)
- Current\(I = \)\( \sqrt{ P / R } \)
Examples
Calculate voltage and power, given the current and resistance
Answer
Given:
- Current, I = 1 amps
- Resistance, R = 1000 ohms
Calculating voltage (V)...
\( V = \) \( I R \)
\( V = \) \(1\times1000\)
\( V = \) 1000 volts
Calculating power (P)...
\( P = \) \( I ^{2} R \)
\( P = \) \(1^{2} \times1000\)
\( P = \) 1000 watts
Calculate resistance and power, given the voltage and current
Answer
Given:
- Voltage, V = 12 volts
- Current, I = 0.02 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V }{ I } \)
\( R = \) \( \frac{12}{0.02} \)
\( R = \) 600 ohms
Calculating power (P)...
\( P = \) \( V \times I \)
\( P = \) \(12\times0.02\)
\( P = \) 0.24 watts
Calculate current and power, given the voltage and resistance
Answer
Given:
- Voltage, V = 230 volts
- Resistance, R = 500 ohms
Calculating current (I)...
\( I = \) \( \frac{ V }{ R } \)
\( I = \) \( \frac{230}{500} \)
\( I = \) 0.46 amps
Calculating power (P)...
\( P = \) \( \frac{ V ^2}{ R } \)
\( P = \) \( \frac{230^2}{500} \)
\( P = \) 105.8 watts
Calculate current and resistance, given the voltage and power
Answer
Given:
- Voltage, V = 230 volts
- Power, P = 1 watts
Calculating current (I)...
\( I = \) \( \frac{ P }{ V } \)
\( I = \) \( \frac{1}{230} \)
\( I = \) 0.0043 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V ^2}{ P } \)
\( R = \) \( \frac{230^2}{1} \)
\( R = \) 52900 ohms
Calculate voltage and resistance, given the current and power
Answer
Given:
- Current, I = 1 amps
- Power, P = 2 watts
Calculating voltage (V)...
\( V = \) \( \frac{ P }{ I } \)
\( V = \) \( \frac{2}{1} \)
\( V = \) 2 volts
Calculating resistance (R)...
\( R = \) \( \frac{ P }{ I ^2} \)
\( R = \) \( \frac{2}{1^2} \)
\( R = \) 2 ohms
Calculate voltage and current, given the resistance and power
Answer
Given:
- Resistance, R = 200 ohms
- Power, P = 5 watts
Calculating voltage (V)...
\( V = \) \( \sqrt{ P \times R } \)
\( V = \) \( \sqrt{5\times200} \)
\( V = \) 31.6228 volts
Calculating current (I)...
\( I = \) \( \sqrt{ P / R } \)
\( I = \) \( \sqrt{5/200} \)
\( I = \) 0.1581 amps
Input and Output Combinations of the Ohms Law Calculator
Here are the input combinations available for the calculator, along with the formulas it uses to calculate the corresponding outputs.
- I Current
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( I R \)
- Power\(P = \)\( I ^{2} R \)
- V Voltage
- I Current
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Resistance\(R = \)\( \frac{ V }{ I } \)
- Power\(P = \)\( V \times I \)
- V Voltage
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ V }{ R } \)
- Power\(P = \)\( \frac{ V ^2}{ R } \)
- V Voltage
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ P }{ V } \)
- Resistance\(R = \)\( \frac{ V ^2}{ P } \)
- I Current
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \frac{ P }{ I } \)
- Resistance\(R = \)\( \frac{ P }{ I ^2} \)
- R Resistance
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \sqrt{ P \times R } \)
- Current\(I = \)\( \sqrt{ P / R } \)
Examples
Calculate voltage and power, given the current and resistance
Answer
Given:
- Current, I = 1 amps
- Resistance, R = 1000 ohms
Calculating voltage (V)...
\( V = \) \( I R \)
\( V = \) \(1\times1000\)
\( V = \) 1000 volts
Calculating power (P)...
\( P = \) \( I ^{2} R \)
\( P = \) \(1^{2} \times1000\)
\( P = \) 1000 watts
Calculate resistance and power, given the voltage and current
Answer
Given:
- Voltage, V = 12 volts
- Current, I = 0.02 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V }{ I } \)
\( R = \) \( \frac{12}{0.02} \)
\( R = \) 600 ohms
Calculating power (P)...
\( P = \) \( V \times I \)
\( P = \) \(12\times0.02\)
\( P = \) 0.24 watts
Calculate current and power, given the voltage and resistance
Answer
Given:
- Voltage, V = 230 volts
- Resistance, R = 500 ohms
Calculating current (I)...
\( I = \) \( \frac{ V }{ R } \)
\( I = \) \( \frac{230}{500} \)
\( I = \) 0.46 amps
Calculating power (P)...
\( P = \) \( \frac{ V ^2}{ R } \)
\( P = \) \( \frac{230^2}{500} \)
\( P = \) 105.8 watts
Calculate current and resistance, given the voltage and power
Answer
Given:
- Voltage, V = 230 volts
- Power, P = 1 watts
Calculating current (I)...
\( I = \) \( \frac{ P }{ V } \)
\( I = \) \( \frac{1}{230} \)
\( I = \) 0.0043 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V ^2}{ P } \)
\( R = \) \( \frac{230^2}{1} \)
\( R = \) 52900 ohms
Calculate voltage and resistance, given the current and power
Answer
Given:
- Current, I = 1 amps
- Power, P = 2 watts
Calculating voltage (V)...
\( V = \) \( \frac{ P }{ I } \)
\( V = \) \( \frac{2}{1} \)
\( V = \) 2 volts
Calculating resistance (R)...
\( R = \) \( \frac{ P }{ I ^2} \)
\( R = \) \( \frac{2}{1^2} \)
\( R = \) 2 ohms
Calculate voltage and current, given the resistance and power
Answer
Given:
- Resistance, R = 200 ohms
- Power, P = 5 watts
Calculating voltage (V)...
\( V = \) \( \sqrt{ P \times R } \)
\( V = \) \( \sqrt{5\times200} \)
\( V = \) 31.6228 volts
Calculating current (I)...
\( I = \) \( \sqrt{ P / R } \)
\( I = \) \( \sqrt{5/200} \)
\( I = \) 0.1581 amps
Input and Output Combinations of the Ohms Law Calculator
Here are the input combinations available for the calculator, along with the formulas it uses to calculate the corresponding outputs.
- I Current
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( I R \)
- Power\(P = \)\( I ^{2} R \)
- V Voltage
- I Current
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Resistance\(R = \)\( \frac{ V }{ I } \)
- Power\(P = \)\( V \times I \)
- V Voltage
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ V }{ R } \)
- Power\(P = \)\( \frac{ V ^2}{ R } \)
- V Voltage
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ P }{ V } \)
- Resistance\(R = \)\( \frac{ V ^2}{ P } \)
- I Current
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \frac{ P }{ I } \)
- Resistance\(R = \)\( \frac{ P }{ I ^2} \)
- R Resistance
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \sqrt{ P \times R } \)
- Current\(I = \)\( \sqrt{ P / R } \)
Examples
Calculate voltage and power, given the current and resistance
Answer
Given:
- Current, I = 1 amps
- Resistance, R = 1000 ohms
Calculating voltage (V)...
\( V = \) \( I R \)
\( V = \) \(1\times1000\)
\( V = \) 1000 volts
Calculating power (P)...
\( P = \) \( I ^{2} R \)
\( P = \) \(1^{2} \times1000\)
\( P = \) 1000 watts
Calculate resistance and power, given the voltage and current
Answer
Given:
- Voltage, V = 12 volts
- Current, I = 0.02 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V }{ I } \)
\( R = \) \( \frac{12}{0.02} \)
\( R = \) 600 ohms
Calculating power (P)...
\( P = \) \( V \times I \)
\( P = \) \(12\times0.02\)
\( P = \) 0.24 watts
Calculate current and power, given the voltage and resistance
Answer
Given:
- Voltage, V = 230 volts
- Resistance, R = 500 ohms
Calculating current (I)...
\( I = \) \( \frac{ V }{ R } \)
\( I = \) \( \frac{230}{500} \)
\( I = \) 0.46 amps
Calculating power (P)...
\( P = \) \( \frac{ V ^2}{ R } \)
\( P = \) \( \frac{230^2}{500} \)
\( P = \) 105.8 watts
Calculate current and resistance, given the voltage and power
Answer
Given:
- Voltage, V = 230 volts
- Power, P = 1 watts
Calculating current (I)...
\( I = \) \( \frac{ P }{ V } \)
\( I = \) \( \frac{1}{230} \)
\( I = \) 0.0043 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V ^2}{ P } \)
\( R = \) \( \frac{230^2}{1} \)
\( R = \) 52900 ohms
Calculate voltage and resistance, given the current and power
Answer
Given:
- Current, I = 1 amps
- Power, P = 2 watts
Calculating voltage (V)...
\( V = \) \( \frac{ P }{ I } \)
\( V = \) \( \frac{2}{1} \)
\( V = \) 2 volts
Calculating resistance (R)...
\( R = \) \( \frac{ P }{ I ^2} \)
\( R = \) \( \frac{2}{1^2} \)
\( R = \) 2 ohms
Calculate voltage and current, given the resistance and power
Answer
Given:
- Resistance, R = 200 ohms
- Power, P = 5 watts
Calculating voltage (V)...
\( V = \) \( \sqrt{ P \times R } \)
\( V = \) \( \sqrt{5\times200} \)
\( V = \) 31.6228 volts
Calculating current (I)...
\( I = \) \( \sqrt{ P / R } \)
\( I = \) \( \sqrt{5/200} \)
\( I = \) 0.1581 amps
Input and Output Combinations of the Ohms Law Calculator
Here are the input combinations available for the calculator, along with the formulas it uses to calculate the corresponding outputs.
- I Current
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( I R \)
- Power\(P = \)\( I ^{2} R \)
- V Voltage
- I Current
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Resistance\(R = \)\( \frac{ V }{ I } \)
- Power\(P = \)\( V \times I \)
- V Voltage
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ V }{ R } \)
- Power\(P = \)\( \frac{ V ^2}{ R } \)
- V Voltage
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ P }{ V } \)
- Resistance\(R = \)\( \frac{ V ^2}{ P } \)
- I Current
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \frac{ P }{ I } \)
- Resistance\(R = \)\( \frac{ P }{ I ^2} \)
- R Resistance
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \sqrt{ P \times R } \)
- Current\(I = \)\( \sqrt{ P / R } \)
Examples
Calculate voltage and power, given the current and resistance
Answer
Given:
- Current, I = 1 amps
- Resistance, R = 1000 ohms
Calculating voltage (V)...
\( V = \) \( I R \)
\( V = \) \(1\times1000\)
\( V = \) 1000 volts
Calculating power (P)...
\( P = \) \( I ^{2} R \)
\( P = \) \(1^{2} \times1000\)
\( P = \) 1000 watts
Calculate resistance and power, given the voltage and current
Answer
Given:
- Voltage, V = 12 volts
- Current, I = 0.02 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V }{ I } \)
\( R = \) \( \frac{12}{0.02} \)
\( R = \) 600 ohms
Calculating power (P)...
\( P = \) \( V \times I \)
\( P = \) \(12\times0.02\)
\( P = \) 0.24 watts
Calculate current and power, given the voltage and resistance
Answer
Given:
- Voltage, V = 230 volts
- Resistance, R = 500 ohms
Calculating current (I)...
\( I = \) \( \frac{ V }{ R } \)
\( I = \) \( \frac{230}{500} \)
\( I = \) 0.46 amps
Calculating power (P)...
\( P = \) \( \frac{ V ^2}{ R } \)
\( P = \) \( \frac{230^2}{500} \)
\( P = \) 105.8 watts
Calculate current and resistance, given the voltage and power
Answer
Given:
- Voltage, V = 230 volts
- Power, P = 1 watts
Calculating current (I)...
\( I = \) \( \frac{ P }{ V } \)
\( I = \) \( \frac{1}{230} \)
\( I = \) 0.0043 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V ^2}{ P } \)
\( R = \) \( \frac{230^2}{1} \)
\( R = \) 52900 ohms
Calculate voltage and resistance, given the current and power
Answer
Given:
- Current, I = 1 amps
- Power, P = 2 watts
Calculating voltage (V)...
\( V = \) \( \frac{ P }{ I } \)
\( V = \) \( \frac{2}{1} \)
\( V = \) 2 volts
Calculating resistance (R)...
\( R = \) \( \frac{ P }{ I ^2} \)
\( R = \) \( \frac{2}{1^2} \)
\( R = \) 2 ohms
Calculate voltage and current, given the resistance and power
Answer
Given:
- Resistance, R = 200 ohms
- Power, P = 5 watts
Calculating voltage (V)...
\( V = \) \( \sqrt{ P \times R } \)
\( V = \) \( \sqrt{5\times200} \)
\( V = \) 31.6228 volts
Calculating current (I)...
\( I = \) \( \sqrt{ P / R } \)
\( I = \) \( \sqrt{5/200} \)
\( I = \) 0.1581 amps
Input and Output Combinations of the Ohms Law Calculator
Here are the input combinations available for the calculator, along with the formulas it uses to calculate the corresponding outputs.
- I Current
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( I R \)
- Power\(P = \)\( I ^{2} R \)
- V Voltage
- I Current
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Resistance\(R = \)\( \frac{ V }{ I } \)
- Power\(P = \)\( V \times I \)
- V Voltage
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ V }{ R } \)
- Power\(P = \)\( \frac{ V ^2}{ R } \)
- V Voltage
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ P }{ V } \)
- Resistance\(R = \)\( \frac{ V ^2}{ P } \)
- I Current
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \frac{ P }{ I } \)
- Resistance\(R = \)\( \frac{ P }{ I ^2} \)
- R Resistance
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \sqrt{ P \times R } \)
- Current\(I = \)\( \sqrt{ P / R } \)
Examples
Calculate voltage and power, given the current and resistance
Answer
Given:
- Current, I = 1 amps
- Resistance, R = 1000 ohms
Calculating voltage (V)...
\( V = \) \( I R \)
\( V = \) \(1\times1000\)
\( V = \) 1000 volts
Calculating power (P)...
\( P = \) \( I ^{2} R \)
\( P = \) \(1^{2} \times1000\)
\( P = \) 1000 watts
Calculate resistance and power, given the voltage and current
Answer
Given:
- Voltage, V = 12 volts
- Current, I = 0.02 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V }{ I } \)
\( R = \) \( \frac{12}{0.02} \)
\( R = \) 600 ohms
Calculating power (P)...
\( P = \) \( V \times I \)
\( P = \) \(12\times0.02\)
\( P = \) 0.24 watts
Calculate current and power, given the voltage and resistance
Answer
Given:
- Voltage, V = 230 volts
- Resistance, R = 500 ohms
Calculating current (I)...
\( I = \) \( \frac{ V }{ R } \)
\( I = \) \( \frac{230}{500} \)
\( I = \) 0.46 amps
Calculating power (P)...
\( P = \) \( \frac{ V ^2}{ R } \)
\( P = \) \( \frac{230^2}{500} \)
\( P = \) 105.8 watts
Calculate current and resistance, given the voltage and power
Answer
Given:
- Voltage, V = 230 volts
- Power, P = 1 watts
Calculating current (I)...
\( I = \) \( \frac{ P }{ V } \)
\( I = \) \( \frac{1}{230} \)
\( I = \) 0.0043 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V ^2}{ P } \)
\( R = \) \( \frac{230^2}{1} \)
\( R = \) 52900 ohms
Calculate voltage and resistance, given the current and power
Answer
Given:
- Current, I = 1 amps
- Power, P = 2 watts
Calculating voltage (V)...
\( V = \) \( \frac{ P }{ I } \)
\( V = \) \( \frac{2}{1} \)
\( V = \) 2 volts
Calculating resistance (R)...
\( R = \) \( \frac{ P }{ I ^2} \)
\( R = \) \( \frac{2}{1^2} \)
\( R = \) 2 ohms
Calculate voltage and current, given the resistance and power
Answer
Given:
- Resistance, R = 200 ohms
- Power, P = 5 watts
Calculating voltage (V)...
\( V = \) \( \sqrt{ P \times R } \)
\( V = \) \( \sqrt{5\times200} \)
\( V = \) 31.6228 volts
Calculating current (I)...
\( I = \) \( \sqrt{ P / R } \)
\( I = \) \( \sqrt{5/200} \)
\( I = \) 0.1581 amps
Input and Output Combinations of the Ohms Law Calculator
Here are the input combinations available for the calculator, along with the formulas it uses to calculate the corresponding outputs.
- I Current
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( I R \)
- Power\(P = \)\( I ^{2} R \)
- V Voltage
- I Current
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Resistance\(R = \)\( \frac{ V }{ I } \)
- Power\(P = \)\( V \times I \)
- V Voltage
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ V }{ R } \)
- Power\(P = \)\( \frac{ V ^2}{ R } \)
- V Voltage
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ P }{ V } \)
- Resistance\(R = \)\( \frac{ V ^2}{ P } \)
- I Current
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \frac{ P }{ I } \)
- Resistance\(R = \)\( \frac{ P }{ I ^2} \)
- R Resistance
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \sqrt{ P \times R } \)
- Current\(I = \)\( \sqrt{ P / R } \)
Examples
Calculate voltage and power, given the current and resistance
Answer
Given:
- Current, I = 1 amps
- Resistance, R = 1000 ohms
Calculating voltage (V)...
\( V = \) \( I R \)
\( V = \) \(1\times1000\)
\( V = \) 1000 volts
Calculating power (P)...
\( P = \) \( I ^{2} R \)
\( P = \) \(1^{2} \times1000\)
\( P = \) 1000 watts
Calculate resistance and power, given the voltage and current
Answer
Given:
- Voltage, V = 12 volts
- Current, I = 0.02 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V }{ I } \)
\( R = \) \( \frac{12}{0.02} \)
\( R = \) 600 ohms
Calculating power (P)...
\( P = \) \( V \times I \)
\( P = \) \(12\times0.02\)
\( P = \) 0.24 watts
Calculate current and power, given the voltage and resistance
Answer
Given:
- Voltage, V = 230 volts
- Resistance, R = 500 ohms
Calculating current (I)...
\( I = \) \( \frac{ V }{ R } \)
\( I = \) \( \frac{230}{500} \)
\( I = \) 0.46 amps
Calculating power (P)...
\( P = \) \( \frac{ V ^2}{ R } \)
\( P = \) \( \frac{230^2}{500} \)
\( P = \) 105.8 watts
Calculate current and resistance, given the voltage and power
Answer
Given:
- Voltage, V = 230 volts
- Power, P = 1 watts
Calculating current (I)...
\( I = \) \( \frac{ P }{ V } \)
\( I = \) \( \frac{1}{230} \)
\( I = \) 0.0043 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V ^2}{ P } \)
\( R = \) \( \frac{230^2}{1} \)
\( R = \) 52900 ohms
Calculate voltage and resistance, given the current and power
Answer
Given:
- Current, I = 1 amps
- Power, P = 2 watts
Calculating voltage (V)...
\( V = \) \( \frac{ P }{ I } \)
\( V = \) \( \frac{2}{1} \)
\( V = \) 2 volts
Calculating resistance (R)...
\( R = \) \( \frac{ P }{ I ^2} \)
\( R = \) \( \frac{2}{1^2} \)
\( R = \) 2 ohms
Calculate voltage and current, given the resistance and power
Answer
Given:
- Resistance, R = 200 ohms
- Power, P = 5 watts
Calculating voltage (V)...
\( V = \) \( \sqrt{ P \times R } \)
\( V = \) \( \sqrt{5\times200} \)
\( V = \) 31.6228 volts
Calculating current (I)...
\( I = \) \( \sqrt{ P / R } \)
\( I = \) \( \sqrt{5/200} \)
\( I = \) 0.1581 amps
Input and Output Combinations of the Ohms Law Calculator
Here are the input combinations available for the calculator, along with the formulas it uses to calculate the corresponding outputs.
- I Current
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( I R \)
- Power\(P = \)\( I ^{2} R \)
- V Voltage
- I Current
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Resistance\(R = \)\( \frac{ V }{ I } \)
- Power\(P = \)\( V \times I \)
- V Voltage
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ V }{ R } \)
- Power\(P = \)\( \frac{ V ^2}{ R } \)
- V Voltage
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ P }{ V } \)
- Resistance\(R = \)\( \frac{ V ^2}{ P } \)
- I Current
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \frac{ P }{ I } \)
- Resistance\(R = \)\( \frac{ P }{ I ^2} \)
- R Resistance
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \sqrt{ P \times R } \)
- Current\(I = \)\( \sqrt{ P / R } \)
Examples
Calculate voltage and power, given the current and resistance
Answer
Given:
- Current, I = 1 amps
- Resistance, R = 1000 ohms
Calculating voltage (V)...
\( V = \) \( I R \)
\( V = \) \(1\times1000\)
\( V = \) 1000 volts
Calculating power (P)...
\( P = \) \( I ^{2} R \)
\( P = \) \(1^{2} \times1000\)
\( P = \) 1000 watts
Calculate resistance and power, given the voltage and current
Answer
Given:
- Voltage, V = 12 volts
- Current, I = 0.02 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V }{ I } \)
\( R = \) \( \frac{12}{0.02} \)
\( R = \) 600 ohms
Calculating power (P)...
\( P = \) \( V \times I \)
\( P = \) \(12\times0.02\)
\( P = \) 0.24 watts
Calculate current and power, given the voltage and resistance
Answer
Given:
- Voltage, V = 230 volts
- Resistance, R = 500 ohms
Calculating current (I)...
\( I = \) \( \frac{ V }{ R } \)
\( I = \) \( \frac{230}{500} \)
\( I = \) 0.46 amps
Calculating power (P)...
\( P = \) \( \frac{ V ^2}{ R } \)
\( P = \) \( \frac{230^2}{500} \)
\( P = \) 105.8 watts
Calculate current and resistance, given the voltage and power
Answer
Given:
- Voltage, V = 230 volts
- Power, P = 1 watts
Calculating current (I)...
\( I = \) \( \frac{ P }{ V } \)
\( I = \) \( \frac{1}{230} \)
\( I = \) 0.0043 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V ^2}{ P } \)
\( R = \) \( \frac{230^2}{1} \)
\( R = \) 52900 ohms
Calculate voltage and resistance, given the current and power
Answer
Given:
- Current, I = 1 amps
- Power, P = 2 watts
Calculating voltage (V)...
\( V = \) \( \frac{ P }{ I } \)
\( V = \) \( \frac{2}{1} \)
\( V = \) 2 volts
Calculating resistance (R)...
\( R = \) \( \frac{ P }{ I ^2} \)
\( R = \) \( \frac{2}{1^2} \)
\( R = \) 2 ohms
Calculate voltage and current, given the resistance and power
Answer
Given:
- Resistance, R = 200 ohms
- Power, P = 5 watts
Calculating voltage (V)...
\( V = \) \( \sqrt{ P \times R } \)
\( V = \) \( \sqrt{5\times200} \)
\( V = \) 31.6228 volts
Calculating current (I)...
\( I = \) \( \sqrt{ P / R } \)
\( I = \) \( \sqrt{5/200} \)
\( I = \) 0.1581 amps
Input and Output Combinations of the Ohms Law Calculator
Here are the input combinations available for the calculator, along with the formulas it uses to calculate the corresponding outputs.
- I Current
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( I R \)
- Power\(P = \)\( I ^{2} R \)
- V Voltage
- I Current
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Resistance\(R = \)\( \frac{ V }{ I } \)
- Power\(P = \)\( V \times I \)
- V Voltage
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ V }{ R } \)
- Power\(P = \)\( \frac{ V ^2}{ R } \)
- V Voltage
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ P }{ V } \)
- Resistance\(R = \)\( \frac{ V ^2}{ P } \)
- I Current
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \frac{ P }{ I } \)
- Resistance\(R = \)\( \frac{ P }{ I ^2} \)
- R Resistance
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \sqrt{ P \times R } \)
- Current\(I = \)\( \sqrt{ P / R } \)
Examples
Calculate voltage and power, given the current and resistance
Answer
Given:
- Current, I = 1 amps
- Resistance, R = 1000 ohms
Calculating voltage (V)...
\( V = \) \( I R \)
\( V = \) \(1\times1000\)
\( V = \) 1000 volts
Calculating power (P)...
\( P = \) \( I ^{2} R \)
\( P = \) \(1^{2} \times1000\)
\( P = \) 1000 watts
Calculate resistance and power, given the voltage and current
Answer
Given:
- Voltage, V = 12 volts
- Current, I = 0.02 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V }{ I } \)
\( R = \) \( \frac{12}{0.02} \)
\( R = \) 600 ohms
Calculating power (P)...
\( P = \) \( V \times I \)
\( P = \) \(12\times0.02\)
\( P = \) 0.24 watts
Calculate current and power, given the voltage and resistance
Answer
Given:
- Voltage, V = 230 volts
- Resistance, R = 500 ohms
Calculating current (I)...
\( I = \) \( \frac{ V }{ R } \)
\( I = \) \( \frac{230}{500} \)
\( I = \) 0.46 amps
Calculating power (P)...
\( P = \) \( \frac{ V ^2}{ R } \)
\( P = \) \( \frac{230^2}{500} \)
\( P = \) 105.8 watts
Calculate current and resistance, given the voltage and power
Answer
Given:
- Voltage, V = 230 volts
- Power, P = 1 watts
Calculating current (I)...
\( I = \) \( \frac{ P }{ V } \)
\( I = \) \( \frac{1}{230} \)
\( I = \) 0.0043 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V ^2}{ P } \)
\( R = \) \( \frac{230^2}{1} \)
\( R = \) 52900 ohms
Calculate voltage and resistance, given the current and power
Answer
Given:
- Current, I = 1 amps
- Power, P = 2 watts
Calculating voltage (V)...
\( V = \) \( \frac{ P }{ I } \)
\( V = \) \( \frac{2}{1} \)
\( V = \) 2 volts
Calculating resistance (R)...
\( R = \) \( \frac{ P }{ I ^2} \)
\( R = \) \( \frac{2}{1^2} \)
\( R = \) 2 ohms
Calculate voltage and current, given the resistance and power
Answer
Given:
- Resistance, R = 200 ohms
- Power, P = 5 watts
Calculating voltage (V)...
\( V = \) \( \sqrt{ P \times R } \)
\( V = \) \( \sqrt{5\times200} \)
\( V = \) 31.6228 volts
Calculating current (I)...
\( I = \) \( \sqrt{ P / R } \)
\( I = \) \( \sqrt{5/200} \)
\( I = \) 0.1581 amps
Input and Output Combinations of the Ohms Law Calculator
Here are the input combinations available for the calculator, along with the formulas it uses to calculate the corresponding outputs.
- I Current
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( I R \)
- Power\(P = \)\( I ^{2} R \)
- V Voltage
- I Current
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Resistance\(R = \)\( \frac{ V }{ I } \)
- Power\(P = \)\( V \times I \)
- V Voltage
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ V }{ R } \)
- Power\(P = \)\( \frac{ V ^2}{ R } \)
- V Voltage
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ P }{ V } \)
- Resistance\(R = \)\( \frac{ V ^2}{ P } \)
- I Current
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \frac{ P }{ I } \)
- Resistance\(R = \)\( \frac{ P }{ I ^2} \)
- R Resistance
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \sqrt{ P \times R } \)
- Current\(I = \)\( \sqrt{ P / R } \)
Examples
Calculate voltage and power, given the current and resistance
Answer
Given:
- Current, I = 1 amps
- Resistance, R = 1000 ohms
Calculating voltage (V)...
\( V = \) \( I R \)
\( V = \) \(1\times1000\)
\( V = \) 1000 volts
Calculating power (P)...
\( P = \) \( I ^{2} R \)
\( P = \) \(1^{2} \times1000\)
\( P = \) 1000 watts
Calculate resistance and power, given the voltage and current
Answer
Given:
- Voltage, V = 12 volts
- Current, I = 0.02 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V }{ I } \)
\( R = \) \( \frac{12}{0.02} \)
\( R = \) 600 ohms
Calculating power (P)...
\( P = \) \( V \times I \)
\( P = \) \(12\times0.02\)
\( P = \) 0.24 watts
Calculate current and power, given the voltage and resistance
Answer
Given:
- Voltage, V = 230 volts
- Resistance, R = 500 ohms
Calculating current (I)...
\( I = \) \( \frac{ V }{ R } \)
\( I = \) \( \frac{230}{500} \)
\( I = \) 0.46 amps
Calculating power (P)...
\( P = \) \( \frac{ V ^2}{ R } \)
\( P = \) \( \frac{230^2}{500} \)
\( P = \) 105.8 watts
Calculate current and resistance, given the voltage and power
Answer
Given:
- Voltage, V = 230 volts
- Power, P = 1 watts
Calculating current (I)...
\( I = \) \( \frac{ P }{ V } \)
\( I = \) \( \frac{1}{230} \)
\( I = \) 0.0043 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V ^2}{ P } \)
\( R = \) \( \frac{230^2}{1} \)
\( R = \) 52900 ohms
Calculate voltage and resistance, given the current and power
Answer
Given:
- Current, I = 1 amps
- Power, P = 2 watts
Calculating voltage (V)...
\( V = \) \( \frac{ P }{ I } \)
\( V = \) \( \frac{2}{1} \)
\( V = \) 2 volts
Calculating resistance (R)...
\( R = \) \( \frac{ P }{ I ^2} \)
\( R = \) \( \frac{2}{1^2} \)
\( R = \) 2 ohms
Calculate voltage and current, given the resistance and power
Answer
Given:
- Resistance, R = 200 ohms
- Power, P = 5 watts
Calculating voltage (V)...
\( V = \) \( \sqrt{ P \times R } \)
\( V = \) \( \sqrt{5\times200} \)
\( V = \) 31.6228 volts
Calculating current (I)...
\( I = \) \( \sqrt{ P / R } \)
\( I = \) \( \sqrt{5/200} \)
\( I = \) 0.1581 amps
Input and Output Combinations of the Ohms Law Calculator
Here are the input combinations available for the calculator, along with the formulas it uses to calculate the corresponding outputs.
- I Current
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( I R \)
- Power\(P = \)\( I ^{2} R \)
- V Voltage
- I Current
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Resistance\(R = \)\( \frac{ V }{ I } \)
- Power\(P = \)\( V \times I \)
- V Voltage
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ V }{ R } \)
- Power\(P = \)\( \frac{ V ^2}{ R } \)
- V Voltage
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ P }{ V } \)
- Resistance\(R = \)\( \frac{ V ^2}{ P } \)
- I Current
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \frac{ P }{ I } \)
- Resistance\(R = \)\( \frac{ P }{ I ^2} \)
- R Resistance
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \sqrt{ P \times R } \)
- Current\(I = \)\( \sqrt{ P / R } \)
Examples
Calculate voltage and power, given the current and resistance
Answer
Given:
- Current, I = 1 amps
- Resistance, R = 1000 ohms
Calculating voltage (V)...
\( V = \) \( I R \)
\( V = \) \(1\times1000\)
\( V = \) 1000 volts
Calculating power (P)...
\( P = \) \( I ^{2} R \)
\( P = \) \(1^{2} \times1000\)
\( P = \) 1000 watts
Calculate resistance and power, given the voltage and current
Answer
Given:
- Voltage, V = 12 volts
- Current, I = 0.02 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V }{ I } \)
\( R = \) \( \frac{12}{0.02} \)
\( R = \) 600 ohms
Calculating power (P)...
\( P = \) \( V \times I \)
\( P = \) \(12\times0.02\)
\( P = \) 0.24 watts
Calculate current and power, given the voltage and resistance
Answer
Given:
- Voltage, V = 230 volts
- Resistance, R = 500 ohms
Calculating current (I)...
\( I = \) \( \frac{ V }{ R } \)
\( I = \) \( \frac{230}{500} \)
\( I = \) 0.46 amps
Calculating power (P)...
\( P = \) \( \frac{ V ^2}{ R } \)
\( P = \) \( \frac{230^2}{500} \)
\( P = \) 105.8 watts
Calculate current and resistance, given the voltage and power
Answer
Given:
- Voltage, V = 230 volts
- Power, P = 1 watts
Calculating current (I)...
\( I = \) \( \frac{ P }{ V } \)
\( I = \) \( \frac{1}{230} \)
\( I = \) 0.0043 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V ^2}{ P } \)
\( R = \) \( \frac{230^2}{1} \)
\( R = \) 52900 ohms
Calculate voltage and resistance, given the current and power
Answer
Given:
- Current, I = 1 amps
- Power, P = 2 watts
Calculating voltage (V)...
\( V = \) \( \frac{ P }{ I } \)
\( V = \) \( \frac{2}{1} \)
\( V = \) 2 volts
Calculating resistance (R)...
\( R = \) \( \frac{ P }{ I ^2} \)
\( R = \) \( \frac{2}{1^2} \)
\( R = \) 2 ohms
Calculate voltage and current, given the resistance and power
Answer
Given:
- Resistance, R = 200 ohms
- Power, P = 5 watts
Calculating voltage (V)...
\( V = \) \( \sqrt{ P \times R } \)
\( V = \) \( \sqrt{5\times200} \)
\( V = \) 31.6228 volts
Calculating current (I)...
\( I = \) \( \sqrt{ P / R } \)
\( I = \) \( \sqrt{5/200} \)
\( I = \) 0.1581 amps
Input and Output Combinations of the Ohms Law Calculator
Here are the input combinations available for the calculator, along with the formulas it uses to calculate the corresponding outputs.
- I Current
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( I R \)
- Power\(P = \)\( I ^{2} R \)
- V Voltage
- I Current
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Resistance\(R = \)\( \frac{ V }{ I } \)
- Power\(P = \)\( V \times I \)
- V Voltage
- R Resistance
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ V }{ R } \)
- Power\(P = \)\( \frac{ V ^2}{ R } \)
- V Voltage
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Current\(I = \)\( \frac{ P }{ V } \)
- Resistance\(R = \)\( \frac{ V ^2}{ P } \)
- I Current
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \frac{ P }{ I } \)
- Resistance\(R = \)\( \frac{ P }{ I ^2} \)
- R Resistance
- P Power
For these given inputs,
Outputs, FormulasWe calculate the following outputs:
- Voltage\(V = \)\( \sqrt{ P \times R } \)
- Current\(I = \)\( \sqrt{ P / R } \)
Examples
Calculate voltage and power, given the current and resistance
Answer
Given:
- Current, I = 1 amps
- Resistance, R = 1000 ohms
Calculating voltage (V)...
\( V = \) \( I R \)
\( V = \) \(1\times1000\)
\( V = \) 1000 volts
Calculating power (P)...
\( P = \) \( I ^{2} R \)
\( P = \) \(1^{2} \times1000\)
\( P = \) 1000 watts
Calculate resistance and power, given the voltage and current
Answer
Given:
- Voltage, V = 12 volts
- Current, I = 0.02 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V }{ I } \)
\( R = \) \( \frac{12}{0.02} \)
\( R = \) 600 ohms
Calculating power (P)...
\( P = \) \( V \times I \)
\( P = \) \(12\times0.02\)
\( P = \) 0.24 watts
Calculate current and power, given the voltage and resistance
Answer
Given:
- Voltage, V = 230 volts
- Resistance, R = 500 ohms
Calculating current (I)...
\( I = \) \( \frac{ V }{ R } \)
\( I = \) \( \frac{230}{500} \)
\( I = \) 0.46 amps
Calculating power (P)...
\( P = \) \( \frac{ V ^2}{ R } \)
\( P = \) \( \frac{230^2}{500} \)
\( P = \) 105.8 watts
Calculate current and resistance, given the voltage and power
Answer
Given:
- Voltage, V = 230 volts
- Power, P = 1 watts
Calculating current (I)...
\( I = \) \( \frac{ P }{ V } \)
\( I = \) \( \frac{1}{230} \)
\( I = \) 0.0043 amps
Calculating resistance (R)...
\( R = \) \( \frac{ V ^2}{ P } \)
\( R = \) \( \frac{230^2}{1} \)
\( R = \) 52900 ohms
Calculate voltage and resistance, given the current and power
Answer
Given:
- Current, I = 1 amps
- Power, P = 2 watts
Calculating voltage (V)...
\( V = \) \( \frac{ P }{ I } \)
\( V = \) \( \frac{2}{1} \)
\( V = \) 2 volts
Calculating resistance (R)...
\( R = \) \( \frac{ P }{ I ^2} \)
\( R = \) \( \frac{2}{1^2} \)
\( R = \) 2 ohms
Calculate voltage and current, given the resistance and power
Answer
Given:
- Resistance, R = 200 ohms
- Power, P = 5 watts
Calculating voltage (V)...
\( V = \) \( \sqrt{ P \times R } \)
\( V = \) \( \sqrt{5\times200} \)
\( V = \) 31.6228 volts
Calculating current (I)...
\( I = \) \( \sqrt{ P / R } \)
\( I = \) \( \sqrt{5/200} \)
\( I = \) 0.1581 amps