Question Detail

PHY 102 Electromagnetic Induction Objective Question

Question

What is the maximum induced emf in an AC generator with N turns, area A, angular frequency ω, and magnetic field B?
Options
A ε_max = NBAω
Correct Answer
B ε_max = NBA/ω
C ε_max = NBAω sin θ
D ε_max = NBω/A
Correct Answer

Option A is the correct answer.

Detailed Explanation

The induced emf is ε = NBAω sin θ. The maximum occurs when sin θ = 1, so ε_max = NBAω.

Hint

Maximum when sin θ = 1.

Question Info