Convert Online Physics Electricity Ohms Law Calculator
Ohms Law Calculator Use our Ohm's Law Calculator to easily calculate voltage, current, resistance, and power in electrical circuits. Simply input any two known values to get the results instantly. Perfect for students, engineers, and hobbyists.
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 \( V = I \cdot R \) The 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:
\[ I = \frac{V}{R} \]
\[ R = \frac{V}{I} \]
\[ V = I \cdot R \]
{
"topic": "ohms-law",
"input_types": [
"float",
"float",
"float",
"float"
],
"input_labels": [
"V",
"I",
"R",
"P"
],
"input_descriptions": [
"Voltage",
"Current",
"Resistance",
"Power"
],
"input_units": [
"volts",
"amps",
"ohms",
"watts"
],
"formula_mathjax": "\\( V = I \\cdot R \\)<br>\\( P = V \\cdot I \\)",
"input_values": [
"",
"",
"",
""
],
"input_pre_msg": "Enter any two inputs and click on Calculate button",
"type": "Calculate",
"title": "Ohms Law Calculator",
"description": "Use our Ohm's Law Calculator to easily calculate voltage, current, resistance, and power in electrical circuits. Simply input any two known values to get the results instantly. Perfect for students, engineers, and hobbyists.",
"category": "Electricity",
"template": "physics",
"formulas": [
{
"parameters": [
"I",
"R"
],
"outputs": [
{
"label": "V",
"formula": " I * R ",
"formula_mathjax": "\\( I R \\)",
"formula_mathjax_sub": "\\( I \\times R \\)"
},
{
"label": "P",
"formula": " I * I * R ",
"formula_mathjax": "\\( I ^{2} R \\)",
"formula_mathjax_sub": "\\( I ^{2} \\times R \\)"
}
],
"examples": [
{
"I": 1,
"R": 1000
}
]
},
{
"parameters": [
"V",
"I"
],
"outputs": [
{
"label": "R",
"formula": " V / I ",
"formula_mathjax": "\\( \\frac{ V }{ I } \\)"
},
{
"label": "P",
"formula": " V * I ",
"formula_mathjax": "\\( V \\times I \\)"
}
],
"examples": [
{
"V": 12,
"I": 0.02
}
]
},
{
"parameters": [
"V",
"R"
],
"outputs": [
{
"label": "I",
"formula": " V / R ",
"formula_mathjax": "\\( \\frac{ V }{ R } \\)"
},
{
"label": "P",
"formula": " V * V / R ",
"formula_mathjax": "\\( \\frac{ V ^2}{ R } \\)"
}
],
"examples": [
{
"V": 230,
"R": 500
}
]
},
{
"parameters": [
"V",
"P"
],
"outputs": [
{
"label": "I",
"formula": " P / V ",
"formula_mathjax": "\\( \\frac{ P }{ V } \\)"
},
{
"label": "R",
"formula": " V * V / P ",
"formula_mathjax": "\\( \\frac{ V ^2}{ P } \\)"
}
],
"examples": [
{
"V": 230,
"P": 1
}
]
},
{
"parameters": [
"I",
"P"
],
"outputs": [
{
"label": "V",
"formula": " P / I ",
"formula_mathjax": "\\( \\frac{ P }{ I } \\)"
},
{
"label": "R",
"formula": " P / ( I * I ) ",
"formula_mathjax": "\\( \\frac{ P }{ I ^2} \\)"
}
],
"examples": [
{
"I": 1,
"P": 2
}
]
},
{
"parameters": [
"R",
"P"
],
"outputs": [
{
"label": "V",
"formula": " Math.sqrt( P * R )",
"formula_mathjax": "\\( \\sqrt{ P \\times R } \\)"
},
{
"label": "I",
"formula": " Math.sqrt( P / R )",
"formula_mathjax": "\\( \\sqrt{ P / R } \\)"
}
],
"examples": [
{
"R": 200,
"P": 5
}
]
}
],
"content": "<h2>What is Ohm's Law</h2><p>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:</p><p>\\[ V = I \\cdot R \\]</p><p>Where:</p><ul> <li>\\(V\\) is the voltage in volts (V)</li> <li>\\(I\\) is the current in amperes (A)</li> <li>\\(R\\) is the resistance in ohms (Ω)</li></ul><h2>Calculating Power, Voltage, Current, and Resistance</h2><p>Power (P) in an electrical circuit is given by the product of voltage and current:</p><p>\\[ P = V \\cdot I \\]</p><p>We can rearrange Ohm's Law to solve for voltage, current, and resistance as follows:</p> <p>\\[ I = \\frac{V}{R} \\]</p> <p>\\[ R = \\frac{V}{I} \\]</p> <p>\\[ V = I \\cdot R \\]</p>"
}
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