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A current I is flowing in a straight con...

A current I is flowing in a straight conductor of length L. The magnetic induction at a point distant `(L)/(4)` from its centre will be

A

`B/2`

B

`B/4`

C

`B/(sqrt(8))`

D

`sqrt(8)B`

Text Solution

Verified by Experts

The correct Answer is:
C
`B=(mu_(0)i)/(2R), B'=(mu_(0)iR^(2))/(2(R^(2)+R^(2))^(3//2))=B/(sqrt(8))`
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