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A 6.28m long wire is turned into a coil ...

A 6.28m long wire is turned into a coil of diameter 0.2m and a current of 1 amp is passed in it. The magnetic induction at its centre will be -

A

`6.28 xx 10^(5)` Tesla

B

`0`

C

`6.28` Tasla

D

`6.28 xx 10^(-3)` Tasla

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The correct Answer is:
A
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