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Question
The magnetic moment of a square coil having 10 turns, each side measuring 2 cm and carrying a current of unit ampere is ____________.
Options
20 x 10-3 A m2
4 x 10-3 A m2
4 A m2
16 x 10-3 A m2
MCQ
Fill in the Blanks
Solution
The magnetic moment of a square coil having 10 turns, each side measuring 2 cm and carrying a current of unit ampere is 4 x 10-3 A m2.
Explanation:
m = NIA = 10 x 1 x (2 x 10-2)2
m = 4 x 10-3 A m2
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Magnetic Dipole Moment
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