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In the question number 73, for the coil given the magnetic moment is

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In the question number 73, for the coil given the magnetic moment is
A. `12.95A m^(2)`
B. `25.79 A m^(2)`
C. `10.05 A m^(2)`
D. `24.79 A m^(2)`
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Correct Answer - C
The magnetic moment is given by
`m=NIA = NIpi r^(2)=100xx3.2xx3.14xx(10xx10^(-2))^(2)`
`=100xx3.2xx3.14xx10^(-2)="10 A m"^(2)`
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