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For adjoining fig, The magnetic field at...

For adjoining fig, The magnetic field at point, 'P' will be:

A

`(mu_(0))/(4 pi) odot`

B

`(mu_(0))/(pi) otimes`

C

`(mu_(0))/(2 pi) otimes`

D

`(mu_(0))/(2 pi) odot`

Text Solution

Verified by Experts

The correct Answer is:
C
Magnetic field due to `5A to (5 mu_(0))/(2 pi xx 2.5) = (2 mu_(0))/(2 pi) otimes`
Magnetic field due to `2.5 A to (2.5 mu_(0))/(2 pi xx 2.5) = (mu_(0))/(2 pi) odot`
Resultant Magnetic field = `(2 mu_(0))/(2 pi) - (mu_(0))/(2 pi) = (mu_(0))/(2pi) otimes`
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