Question

In which device inductor cannot be used?

(a) filter circuit

(b) transformer

(c) choke

(d) dielectric

This question was addressed to me at a job interview.

My query is from Mechanical Analogy, Current and Voltage in an Inductive Circuit in chapter Single Phase Series Circuits of Basic Electrical Engineering

Answer 1

Correct answer is (d) dielectric

To explain I would say: Inductor has wide number of applications.

It is used in LR filter circuits, transformer and choke coil.