Question Detail

PHY 102 Electromagnetic Induction 1 Objective Question
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Question

According to Lenz's Law, if a magnet is moved towards a conducting loop, what is the direction of the magnetic field generated by the induced current?
Options
A In the same direction as the approaching magnet's field, to increase the flux.
B In the opposite direction to the approaching magnet's field, to oppose the increase in flux.
Correct Answer
C Perpendicular to the approaching magnet's field, to create a torque.
D No magnetic field is generated by the induced current in this scenario.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 10 and 11 describe Lenz's Law. It states that the induced current will generate a magnetic field (B) that opposes the change in the original magnetic flux. If the magnet moves towards the loop, the flux is increasing, so the induced field B will be in the opposite direction to the magnet's field to try and decrease the flux.

Hint

Lenz's Law is about opposition to the change in magnetic flux.

Question Info

Course: PHY 102
Topic: Electromagnetic Induction 1
Type: Objective
Difficulty: Not specified
Question 624 of 1819
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