Question Detail

PHY 102 Electromagnetic Induction 1 Objective Question

Question

What is the fundamental principle of Lenz's Law regarding induced emf and current?
Options
A The induced emf is always in the same direction as the change in magnetic flux.
B The induced current flow will always produce a magnetic field that aids the change in magnetic flux.
C The induced current flow will oppose the change in magnetic flux that causes it.
Correct Answer
D Lenz's law only applies to static magnetic fields.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 9 defines Lenz's Law: 'The induced emf is directed so that any induced current flow will oppose the change in magnetic flux (which causes the induced emf).'

Hint

Lenz's Law describes the 'direction' of induced effects and is often associated with a concept of opposition.

Question Info