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A current carrying wire is bent in the L...

A current carrying wire is bent in the L shapes as shown in figure. The length of both arms extend to infinity. Then, the magnetic field at O is-

A

zero

B

`mu_(0)I//2pir`

C

`(mu_(0)I)/(2pir)(1+1/(sqrt(2)))`

D

`(mu_(0)I)/(4pir)(1+1/(sqrt(2)))`

Text Solution

Verified by Experts

The correct Answer is:
C
`B=2(mu_(0))/(4pir) [sin45^(@)+sin90^(@))=(mu_(0)I)/(2pir)(1+1/(sqrt(2)))`
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