Question Detail

PHY 102 Electromagnetic Induction 2 Objective Question

Question

What essential condition must be met for an electromotive force (EMF) to be induced in a coil, according to Faraday's law?
Options
A The coil must be kept stationary in a strong magnetic field.
B The magnetic field must be static and uniform.
C There must be relative motion between the coil and the magnetic field.
Correct Answer
D Both the coil and the magnetic field must move in the same direction at the same speed.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 6 clarifies, 'for Faraday's law to hold true there must be 'relative motion' or movement between the coil and the magnetic field and either the magnetic field, the coil or both can move.'

Hint

Consider what happens if there is no change in the magnetic flux linking the coil.

Question Info