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When a current of 1 ampere flowing throu...

When a current of 1 ampere flowing through two parallel straight conductors : What amount of force per unit length acts between the conductors?

A

`1xx10^(-7)N`

B

`2xx10^(-7)N`

C

`3xx10^(7)N`

D

`4xx10^(-7)N`

Text Solution

Verified by Experts

The correct Answer is:
B
`"Force "(F)/(l)=(mu_(0))/(2pi)(I_(1)xxI_(2))/(d)`
`I_(1)=I_(2)=1A" "l=1, d=1`
`therefore (F)/(l)=(4pixx10^(-7)xx1xx1)/(2pixx1)`
`F=2xx10^(-7)N`
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