A square coil of side 0.1 m, with 50 turns, carries 1 A in a 0.2 T fie…

Question

A square coil of side 0.1 m, with 50 turns, carries 1 A in a 0.2 T field. The maximum torque on the coil is

Accepted Answer

C. 0.1 N·m

1. Magnetic moment m = NIA.
2. Area A = (0.1)² = 0.01 m²; m = 50 × 1 × 0.01 = 0.5 A·m².
3. Maximum torque τ_max = mB (when m is perpendicular to B).
4. τ_max = 0.5 × 0.2 = 0.1 N·m.
_Source: syllabus Physics Ch 4 "Moving Charges and Magnetism", §4.10.1_

Answer

0.05 N·m

Answer

0.02 N·m

Answer

1.0 N·m

A square coil of side 0.1 m, with 50 turns, carries 1 A in a 0.2 T field. The maximum torque on the coil is

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