We all have seen lightnings, In a storm the lighting is created due to difference in potential between cloud and earth. This difference in potential is defined as Voltage. Voltage is measured in unit of volts.
It can be also understood as a pressure that moves the electrons in the medium.
Voltage and the term "potential difference" are often used
interchangeably. Potential difference might be better defined as the
potential energy difference between two points in a circuit.
Lets take a example to understand potential difference.
A tank of water is at a certain height.
The more the height the higher the potential difference. Hence more water will flow through the tank.
