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The magnetic field at a point P due to a...

The magnetic field at a point P due to a current carrying coil as shown in figure is

A

`(mu_(0))/(4pi) (1)/(a^(2))`

B

`(mu_(0))/(4pi) (lax)/((x^(2)-a^(2))^(2))`

C

`(mu_(0))/(4pi) (2pila^(2))/(x^(2))`

D

`(mu_(0))/(4pi) (2pila^(2))/((x^(2)+a^(2))^(3"/"2))`

Text Solution

Verified by Experts

The correct Answer is:
D
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