Question Detail

PHY 102 Electromagnetic Induction 2 Objective Question
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Question

What happens to the galvanometer needle when a magnet, which was previously in motion relative to a coil, stops moving and is held stationary?
Options
A It continues to deflect in the last direction of motion.
B It returns back to the zero position.
Correct Answer
C It deflects further in the same direction.
D It oscillates around the zero position due to residual magnetism.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 5 notes, 'When the magnet stops moving and is held stationary with regards to the coil the needle of the galvanometer returns back to zero as there is no physical movement of the magnetic field.'

Hint

An EMF is induced only when there is a *change* in magnetic flux.

Question Info

Course: PHY 102
Topic: Electromagnetic Induction 2
Type: Objective
Difficulty: Not specified
Question 718 of 1819
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