# What is Ohm's law?

Mar 12, 2018

$V = I \cdot R$ or other forms...

#### Explanation:

Ohm's law describes the relationship between voltage, current and resistance.

It can be expressed in the form: $V = I \cdot R$ where $V$ is the voltage (measured in volts), $I$ the current (measured in amperes) and $R$ the resistance (measured in ohms).

This is also expressible in the VIR triangle:

$V = I \cdot R$
$I = \frac{V}{R}$
$R = \frac{V}{I}$