Question Detail
Question
Find the maximum torque on a 100-turn square loop of wire of 10.0 cm on a side that carries 15.0 A of current in a 2.0 T field.
Correct Answer
Option B is the correct answer.
Detailed Explanation
Area A = (0.1 m)² = 0.01 m². Torque τ = N I A B sinθ, max at θ=90° → τ_max = 100 × 15 × 0.01 × 2.0 = 30 Nm.
Hint
τ_max = N I A B.