What is Voltage ?

 Voltage, often referred to as electric potential difference, is a measure of the electric potential energy per unit charge between two points in an electric circuit. It is typically measured in units of volts (V).

Voltage represents the force or "push" that drives electric charges (electrons) to move through a conductor. It is analogous to pressure in a fluid system: just as pressure causes fluid to flow through a pipe, voltage causes electric current to flow through a conductor.

Mathematically, voltage (V) can be expressed using Ohm's law:

$𝑉=𝐼\times 𝑅$

Where:

• $𝑉$ is the voltage in volts (V),
• $𝐼$ is the current in amperes (A),
• $𝑅$ is the resistance in ohms (Ω).

In simple terms, voltage describes the difference in electric potential energy between two points in a circuit. When a voltage is applied across a conductor, it creates an electric field that exerts a force on electric charges, causing them to move and thereby generating electric current.

Voltage plays a fundamental role in electricity and is crucial for understanding and analyzing electrical circuits, as well as for the operation of electrical devices and systems.