Question

Which of the following is the basis of working of an inductor ?

• A. self induction
• B. mutual induction
• C. magnetic induction
• D. electrostatic induction

Answer 1

Answer:

A. self induction

• The working of an inductor is based on the principle of (A) self-induction.

Explanation

• Self-induction is the phenomenon where a changing current in a coil (inductor) induces an electromotive force (EMF) in the same coil. This induced EMF opposes the change in current that produced it. This property is what allows an inductor to store energy in a magnetic field and resist sudden changes in electric current.

• Mutual induction involves a changing current in one coil inducing an EMF in a nearby coil. This is the principle behind a transformer.

• Magnetic induction is a general term describing the generation of an electric current in a conductor by a changing magnetic field.

• Electrostatic induction involves the redistribution of electric charges within a conductor due to the influence of a nearby charged object, without any direct contact. It does not relate to inductors or current flow.