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A current I ampere flows in the loop hav...

A current I ampere flows in the loop having circular arc of radius r metre subtending an angle 6 as shown in figure. The magnetic field, at center of circle is

A

`(mu_0"l"theta)/(4pir)`

B

`(2mu_0"l")/(4pir^2)sintheta`

C

`(2mu_0"l")/(2r)sintheta`

D

`(mu_0"l"sintheta)/(4r)`

Text Solution

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The correct Answer is:
A
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