A conducting coil is bent in the form of equilateral triangle of side 5 cm. Current flowing through it is 0.2 A. The magnetic moment of the triangle is :-
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A conducting coil is bent in the form of equilateral triangle of side 5 cm. Current flowing through it is 0.2 A. The magnetic moment of the triangle is :-

G1 Physics · Accepted Answer

Magnetic moment μ=IA. Equilateral-triangle area is (√3/4)(0.05)² m². Thus μ=0.2×(√3/4)(0.05)²≈2.2×10⁻⁴ A·m². Hence B.