Question

Potential is measured in:
A.) Joule/coulomb
B.) Watt/coulomb
C.) Newton-second
D.) None of these

Answer 1

Hint: In order to solve this question first we will define electrical potential energy then we will discuss its property and according to its formula we will evaluate its unit and select the correct unit amongst the given options.

Complete step by step answer:

Formula used- $\text{Potential}={\displaystyle \frac{\text{Energy}}{\text{Charge}}}$
Electrical potential energy:
Electrical potential energy is known as the total potential energy possessed by a unit charge if it is located at some point in outer space.
The virtue of two elements, those being, the charge possessed by an object itself, and the relative position of an object in relation to other electrically charged objects, possesses electric potential energy by an object.
The degree of electrical potential depends on how much work is involved in moving the body through the electric field from one point to another.
Electrical potential energy is a scalar quantity and has magnitude only and no direction. It is measured in Joules terms and is denoted by V.
So its general formula is given as:
$\text{Potential}={\displaystyle \frac{\text{Energy}}{\text{Charge}}}$
As we know that unit of energy and charge is joule and coulomb.
So, according to these units potential is measured in:
$\text{Unit of Potential}={\displaystyle \frac{\text{Joule}}{\text{Coulomb}}}$
Hence, Potential is measured in Joule/coulomb.
So, the correct answer is option A.

Note: When an object is pushed towards the electrical field it absorbs a certain amount of energy that is known as the electrical potential. The electric potential is measured for any charge by dividing the potential energy by the sum of charge. Electrical potential is one of the electrical quantities most commonly used and is fundamental for the storage and release of electrical energy.