Question Detail

PHY 102 Electromagnetic Induction 2 Objective Question
Take CBT

Question

What is the fundamental principle of Lenz's Law of Electromagnetic Induction?
Options
A The induced emf is directly proportional to the rate of change of magnetic flux.
B The direction of an induced emf is such that it always opposes the change that is causing it.
Correct Answer
C Magnetic fields are always perpendicular to electric currents.
D Electromagnetic induction only occurs with alternating currents.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 24 explicitly defines Lenz's Law: 'Lenz's Law states that: " the direction of an induced emf is such that it will always opposes the change that is causing it".'

Hint

Lenz's Law provides the direction of the induced current or EMF, and it's always about resisting change.

Question Info

Course: PHY 102
Topic: Electromagnetic Induction 2
Type: Objective
Difficulty: Not specified
Question 733 of 1819
Previous Course Details Next