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A circular coil of radius 5 cm has 500 t...

A circular coil of radius `5` cm has `500` turns of a wire. The approximate value of the coefficient of self-induction of the coil will be

A

25 millihenry

B

`25 xx 10^(-3)` millihenry

C

`50 xx 10^(-3)` millihenry

D

`50 xx 10^(-3)` henry

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The correct Answer is:
A
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