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A symmetric star shaped conducting wire ...

A symmetric star shaped conducting wire loop is carrying a steady state current I as shown in the figure. The distance between the diametrically opposite vertices of the star is 4a. The magnitude of the magnetic field at the centre of the loop is :

A

`(mu_(0)I)/(4pia)3[sqrt(3)-1]`

B

`(mu_(0)I)/(4pia)6[sqrt(3)-1]`

C

`(mu_(0)I)/(4pia)6[sqrt(3)+1]`

D

`(mu_(0)I)/(4pia)3[2- sqrt(3)]`

Text Solution

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The correct Answer is:
B
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