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Two thin, long, parallel wires, separate...

Two thin, long, parallel wires, separated by a distance 'd' carry a current of 'i' A in the same direction. They will

A

attract each other with a factor of `(mu_(0)i^(2))/((2pid^(2))`

B

repel each other with a factor of `(mu_(0)i^(2))/((2pid^(2))`

C

attract each other with a factor of `(mu_(0)i^(2))/((2pid^(2))`

D

repel each other with a factor of `(mu_(0)i^(2))/((2pid^(2))`

Text Solution

Verified by Experts

The correct Answer is:
3
The force per unit length between the two wires is
`(F)/(1) = (mu_(0))/(4pi),(2i_(2))/(d) =(mu_(0)i^(2))/(2pid)`
The force will be attractive as current directions in both are same .
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