The rectangular coil having 100 turns is turned in a uniform magnetic field of 
Tesla as shown in the figure. The torque acting on the loop.
A
11.32 x 10 -4 (N-m) 
B
22.64 x 10 -4 (N-m) 
C
5.66 x 10 -5 (N-m) 
D
Zero
Text Solution
Verified by ExpertsThe correct answer is:
C
The magnetic dipole moment of the current carrying coil is given by 
= 100 × × 0.5 × × (0.08) × × 0.04 î = 16 × × 10 -2 Am 2 (î)
The torque acting on the coil is
= 5.66 × × 10 -5 (N - m) 
.
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