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In the given figure magnetic field at O ...

In the given figure magnetic field at O will be

A

`(sqrt(2) mu_(0) M)/(4 pi d^(3))`

B

`(2sqrt(2)mu_(0)M)/(4pi d^(3))`

C

`(2mu_(0)M)/(4pi d^(3))`

D

`(sqrt(3) mu_(0)M)/(4 pi d^(3))`

Text Solution

Verified by Experts

The correct Answer is:
A
Both the fields are perpendicular to each other .
`B = sqrt(B^(2) + B) = Bsqrt(2)`
`B = (mu_(0))/(4pi) (M)/(d^(3)) sqrt(2) = (sqrt(2) mu_(0)M)/(4 pi d^(2))`
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