Question Detail

PHY 102 Electromagnetic Induction Objective Question
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Question

What does the negative sign in Faraday's Law (ε = -N ΔΦ/Δt) represent?
Options
A The direction of the induced emf opposes the change in flux (Lenz's Law)
Correct Answer
B Energy loss
C That the emf is always negative
D That the flux is always positive
Correct Answer

Option A is the correct answer.

Detailed Explanation

The negative sign in Faraday's Law is a mathematical expression of Lenz's Law, indicating that the induced emf creates a current whose magnetic field opposes the change in magnetic flux.

Hint

Opposition to the change.

Question Info

Course: PHY 102
Topic: Electromagnetic Induction
Type: Objective
Difficulty: Not specified
Question 31 of 1819
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