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Two long parallel conductors carry currents `i_(1)=3A` and `i_(2)=3A` both are directed into the plaane of paper. The magnitude of resultant magnetic field at point `'P' ,` is

A

`12muT`

B

`5 muT`

C

`13muT`

D

`7muT`

Text Solution

Verified by Experts

The correct Answer is:
3
`B=(mu_(0)I)/(2pir),B_(1)=sqrt(B_(1)^(2)+B_(2)^(2)+2B_(1)B_(2)cos theta)`
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