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In given figure X and Y are two long str...

In given figure `X` and `Y` are two long straight parallel conductors each carrying a current of `2A` The force on each conductor is `F` newtons When the current in each is changed to `1A` and reversed in direction the force on each is now
.

A

`F//4` and unchanged in direction

B

`F//2` and reversed in direction

C

`F//2` and unchanged in direction

D

`F//4` and reversed in direction

Text Solution

Verified by Experts

The correct Answer is:
A
`F = (mu_(0))/(4pi) (2I_(1)I_(2))/(d)`
`F =(mu_(0))/(4pi) (2 xx 2 xx 2)/(d) xx l `
`F' = (mu_(0))/(4pi) (2 xx 1 xx 1)/(d) xx l = (F)/(4)`
.
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