Question

The SI unit of electric potential is

• A. ampere.
• B. volt.
• C. joule.
• D. ohm.

Answer 1

The correct option is B

volt.

Explanation for the correct option(s):

option b: volt

The SI unit of electric potential is volt$\left(V\right)$. The electric potential of one volt at a point means that one joule of work is done in bringing one coulomb of positive charge from infinity to that point.

Explanation for the incorrect option(s):

option a: ampere

Ampere is the SI unit of electric current.

option c: joule

Joule is the SI unit of work.

option d: ohm

Ohm is the SI unit of resistance.

Hence, the SI unit of electric potential is volt$\left(V\right)$. Option b is the correct option.