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A current I ampere flows in a circular a...

A current I ampere flows in a circular arc of wire whose radius is R,Which subtends an angle `3pi//2` radius at its cectre .The magnetic induction B at the centre is

A

`mu_(0)i//R`

B

`mu_(0)i//2R`

C

`2mu_(0)i//R`

D

`3mu_(0)i//8R`

Text Solution

Verified by Experts

The correct Answer is:
D
`B=(mu_(0)i)/(4piR)xx(3pi)/2=(3mu_(0)i)/(8R)`
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