Question

What is the SI unit of mutual inductance?

(a) Ohm

(b) Henry

(c) Volt

(d) Siemens

This question was addressed to me in an interview for job.

My question comes from Mutual Inductance topic in portion Inductance in a DC Circuit of Basic Electrical Engineering

Answer 1

The correct answer is:

(b) Henry

Explanation: Mutual inductance is a measure of the ability of one inductor to induce an electromotive force (EMF) in another nearby inductor due to a changing current. The SI unit of mutual inductance is the henry (H), which is the same as the unit of inductance.

• Ohm (a) is the unit of electrical resistance.
• Volt (c) is the unit of electric potential or voltage.
• Siemens (d) is the unit of electrical conductance.

Thus, the correct SI unit for mutual inductance is the henry.