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PHY 102 Electromagnetic Induction 2 Objective Question
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Question

What is a key characteristic distinguishing self-inductance from mutual inductance?
Options
A Self-inductance is a characteristic of a pair of coils, while mutual inductance is of a single coil
B Self-inductance occurs when current changes in the same coil, mutual inductance occurs when current changes in a neighboring coil
Correct Answer
C Self-inductance always aids the current flow, mutual inductance always opposes it
D Self-inductance is measured in Farads, mutual inductance in Henrys
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 32 explicitly states for self-induction: 'If changing current flowing in a coil produces emf in the same coil, it is called self induction.' For mutual induction, it states: 'If changing current flowing through one coil produces emf in another coil, it is called mutual induction.'

Hint

Consider whether the induction occurs within the same coil or between different coils.

Question Info

Course: PHY 102
Topic: Electromagnetic Induction 2
Type: Objective
Difficulty: Not specified
Question 755 of 1819
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