Question

A rectangular coil $20 \mathrm {~cm} \times 20 \mathrm {~cm}$ has 100 turns and carries a current of 1 A. It is placed in a uniform magnetic field B =0.5 T with the direction of magnetic field parallel to the plane of the coil. The magnitude of the torque required to hold this coil in this position is

• A. Zero
• B. 200 N-m
• C. 2 N-m
• D. 10 N-m

Answer 1

Answer: (C)

2 N-m

Answer 2