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Ohm's Law Formula

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Voltage is the potential difference in electric potential between two points, measured in volts, that drives electric current through a conductor. Check FAQs

V = I \cdot R

V - Voltage?I - Electric Current?R - Electric Resistance?

Ohm's Law Example

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Here is how the Ohm's Law equation looks like with Values.

Here is how the Ohm's Law equation looks like with Units.

Here is how the Ohm's Law equation looks like.

31.5 = 2.1 \cdot 15

31.5V = 2.1A \cdot 15Ω

31.5 = 2.1 \cdot 15

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Ohm's Law Solution

Follow our step by step solution on how to calculate Ohm's Law?

FIRST Step Consider the formula

V = I \cdot R

Next Step Substitute values of Variables

∴

V = 2.1A \cdot 15Ω

Next Step Prepare to Evaluate

∴

V = 2.1 \cdot 15

LAST Step Evaluate

∴

V = 31.5V

Ohm's Law Formula Elements

Variables

Voltage

Voltage is the potential difference in electric potential between two points, measured in volts, that drives electric current through a conductor.

Symbol: V

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Voltage

Electric Current

Electric Current is the flow of electrons in a conductor, measured in amperes, and is a fundamental concept in understanding electrical circuits and devices.

Symbol: I

Measurement: Electric CurrentUnit: A

Note: Value can be positive or negative.

Formulas to find Electric Current

Electric Resistance

Electric resistance is the opposition to the flow of an electric current and is measured in ohms, representing how much a material hinders electric current flow.

Symbol: R

Measurement: Electric ResistanceUnit: Ω

Note: Value can be positive or negative.

Formulas to find Electric Resistance

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How to Evaluate Ohm's Law?

Ohm's Law evaluator uses Voltage = Electric Current*Electric Resistance to evaluate the Voltage, Ohm's Law formula is defined as a fundamental principle in electricity that relates the voltage, current, and resistance of a conductor, enabling the calculation of one of these quantities when the other two are known, and is widely used to analyze and design electrical circuits. Voltage is denoted by V symbol.

How to evaluate Ohm's Law using this online evaluator? To use this online evaluator for Ohm's Law, enter Electric Current (I) & Electric Resistance (R) and hit the calculate button.

FAQs on Ohm's Law

What is the formula to find Ohm's Law?

The formula of Ohm's Law is expressed as Voltage = Electric Current*Electric Resistance. Here is an example- 31.5 = 2.1*15.

How to calculate Ohm's Law?

With Electric Current (I) & Electric Resistance (R) we can find Ohm's Law using the formula - Voltage = Electric Current*Electric Resistance.

Can the Ohm's Law be negative?

Yes, the Ohm's Law, measured in Electric Potential can be negative.

Which unit is used to measure Ohm's Law?

Ohm's Law is usually measured using the Volt[V] for Electric Potential. Millivolt[V], Microvolt[V], Nanovolt[V] are the few other units in which Ohm's Law can be measured.

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Ohm's Law Formula

Ohm's Law Example

Ohm's Law Solution

Ohm's Law Formula Elements

Other formulas in Voltage and Current Measuring Instruments category

How to Evaluate Ohm's Law?

FAQs on Ohm's Law

Variable Name