One voltage is defined as the electric potential difference between two points in an electrical circuit. It represents the energy required to move a unit charge from one point to another. In simple terms, voltage is what pushes electric charges to flow through a conductor (like a wire).
The unit of voltage is the **volt (V)**, and it can be thought of as the force that drives electric current through a circuit. If you have a higher voltage, the current tends to flow more easily, and with a lower voltage, less current flows.
You can think of voltage like the pressure of water in a pipe: the higher the pressure (voltage), the more water (current) flows.