Question Detail

PHY 102 Electromagnetic Induction 2 Objective Question
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Question

Based on the observations described, what happens to the galvanometer's needle when a magnet is moved 'towards' a coil and then held stationary near it?
Options
A It deflects away from its center position, then stays deflected.
B It deflects away from its center position, then returns to zero.
Correct Answer
C It stays at the center position, then deflects away.
D It deflects in one direction, then deflects in the opposite direction.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 5 states: 'When the magnet shown below is moved "towards” the coil, the pointer or needle of the Galvanometer... will deflect away from its centre position in one direction only. 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

Consider what happens to the magnetic field when the magnet stops moving relative to the coil.

Question Info

Course: PHY 102
Topic: Electromagnetic Induction 2
Type: Objective
Difficulty: Not specified
Question 728 of 1819
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