Ohm’s law is a simple equation that shows the relationship between resistance, voltage and current through a metal
wire, or some other type of resistive material. In mathematical terms, Ohm’s law is written as:
I = V/R, where I is the current (amps), V is the voltage, and R is the resistance.
Ohm’s law can also show the relationship between resistance, voltage and power using the following equation:
P = V2/R, where P is the power (watts), V is the voltage, and R is the resistance