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The magnitude of the magnetic field at O...

The magnitude of the magnetic field at O ( centre of the circular part ) due to the current - carrying coil as shown is :

A

`(mu_0i)/(4pi)((4pi)/a+sqrt2/b)`

B

`(mu_0i)/(2pi)((3pi)/(2a)+sqrt2/b)`

C

`(mu_0i)/(2pi)((pi)/(3a)+3/(sqrt(2)b))`

D

`(mu_0i)/(4pi)((3pi)/(2a)+sqrt2/b)`

Text Solution

Verified by Experts

The correct Answer is:
D
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