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  • A wire of length 2m carrying a current of 1 A is bent to form a circle. The magnetic moment of the coil is:Option: 1 <img alt="2 \pi \mathrm{A}-\math

A wire of length 2m carrying a current of 1 A is bent to form a circle. The magnetic moment of the coil is:

Option: 1

2 \pi \mathrm{A}-\mathrm{m}^2


Option: 2

\frac{1}{\pi} \mathrm{A}-\mathrm{m}^2


Option: 3

\pi \mathrm{A}-\mathrm{m}^2


Option: 4

\mathrm{\frac{2}{\pi} A-m^2}


Answers (1)

\mathrm{ 2 \pi r=2, r=\frac{1}{\pi} \\ }

\mathrm{ \pi r^2=\frac{1}{\pi} \\ }

\mathrm{ I A=\frac{1}{\pi}}.

Posted by

Sumit Saini

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