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Two long straight wires, each carrying a...

Two long straight wires, each carrying a current `I` in opossite directions asre separated by a distasnce `R`. The magnetic induction at a point mid way between the wire is

A

zero

B

`(mu_0I)/(piR)`

C

`(2mu_I)/(piR)`

D

`(mu_0I)/(4piR)`

Text Solution

Verified by Experts

The correct Answer is:
C
Two fields are additive.
`:. B_("net")=2[(mu_0I)/(2pi(R/2)]=(2mu_0I)/(piR)]`
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