Question

What is the potential difference ? Explain and give its unit with definition.

Answer 1

Hint: Potential difference is the difference in the amount of energy that charge carriers have between two points in a circuit. Potential difference $$\left(p.d.\right)$$ is measured in volts $$\left(V\right)$$ and is also called voltage.

Complete answer:
The work required to transfer a charge from one point to another is described as potential difference. For a charge to pass between two points, there must be a potential difference in current. The potential energy difference per unit charge or voltage is another term for it. The Volt is the unit of potential difference $$\left(V\right)$$.

We can also say that the amount of work required to move a unit positive charge from one point to another is described as a potential difference.
$$1Joule/Coulomb=1Volt$$
The volt is the SI unit for potential difference$$\left(V\right)$$ . $$1volt$$ = The potential difference between two points in a current carrying conductor when $$1joule$$ of work is performed to transfer a charge of $$1coulomb$$ from one point to the other.

Note: The potential difference (which is the same as voltage) is equal to the amount of current multiplied by the resistance. A potential difference of one Volt is equal to one Joule of energy being used by one Coulomb of charge when it flows between two points in a circuit.