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Two long straight horizontal parallel wi...

Two long straight horizontal parallel wires one above the other are separated by a distance `'2a'` . If the wires carry equal currents in opposite directions, the magnitude of the magnitude induction in the plane of the wires at a distance `'a'` above the upper wire is

A

`(mu_0 i)/(2pia)`

B

`(mu_0 i)/(2pi a) + (mu_0 i)/(4 pi a)`

C

`(mu_0 i)/(2pi a) - (mu_0 i)/(4 pi a)`

D

`(mu_0 i)/(3 pi a )`

Text Solution

Verified by Experts

The correct Answer is:
D
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