Question Detail
Question
An AC generator has 10 turns, area 0.1 m², rotates at 314 rad/s in a 0.2-T field. What is the maximum emf?
Correct Answer
Option A is the correct answer.
Detailed Explanation
ε_max = NBAω = (10)(0.2 T)(0.1 m²)(314 rad/s) = 10 × 0.2 × 0.1 × 314 = 62.8 V.
Hint
Multiply N × B × A × ω.