As we Know what are Voltage, Electric Current and Resistance as we have described below. We will now see a relation between the three that is

V=IR

This formula above is known as Ohms Law.

It can be used to calculate any of the following Voltage, Resistance and Current provided any two values among them are provided. The above formula can also be written as

I=V/R or R=V/I.

Above are three different notations of Ohms Law.

Reference:

Voltage can be defined as a type of Force which drives the electric current in the electronic circuit. Its unit is Volts. For example we have a 9volts battery.

Electric Current can be defined as flow of electrons in the electronic circuit. Electrons are nothing but a type of a charge. Its unit is Amperes.

Resistance is the obstruction in path of current. It is measured in Ohms.