Voltage, also known as electric potential difference, is a measure of the electrical energy difference between two points in a circuit. It is the force that pushes electric charges (electrons) to move through a conductor, like a wire. You can think of voltage as the "pressure" that drives the flow of electricity, much like how water pressure pushes water through a pipe.
In simpler terms, voltage tells you how much potential energy is available to move the electric charges. It's measured in **volts (V)**, and it can be thought of as the cause that makes electric current (the flow of electrons) happen.
For example:
- A battery provides a certain voltage to push electrons through a circuit to power something like a light bulb.
- The higher the voltage, the more potential there is to push the current.