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If same current I passing through two pa...

If same current I passing through two parallel wires separated by a distance b, then force per unit length will he

A

`(mu_(0))/(4pi)(2I^(2))/(b)`

B

`(mu_(0)I)/(4pib)`

C

`(mu_(0)I^(2))/(4pib^(2))`

D

`(mu_(0)I^(2))/(4pib)`

Text Solution

Verified by Experts

The correct Answer is:
A
Force per unit length two parallel current carrying wire seperated by a distance b
`=(mu_(0))/(4pi)(2I_(1)I_(2))/(b)=(mu_(0))/(2pi)(2I^(2))/(b)(:.I_(1)=I_(2)=I)`
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