Question Detail

PHY 102 Electromagnetic Induction Objective Question

Question

A 100-turn coil with area 0.01 m² rotates in a 0.2-T field at 50 rad/s. What is the maximum emf?
Options
A 10 V
Correct Answer
B 1 V
C 100 V
D 0.1 V
Correct Answer

Option A is the correct answer.

Detailed Explanation

ε_max = NBAω = (100)(0.2 T)(0.01 m²)(50 rad/s) = 100 × 0.2 × 0.01 × 50 = 10 V.

Hint

Multiply N × B × A × ω.

Question Info