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A conductor of length 2 m carrying curre...

A conductor of length 2 m carrying current 2 A is held parallel to an infinitely long conductor carrying current of 12 A at a distance of 100 mm, the force on small conductor is

A

`8.6 xx 10^(-5)N`

B

`6.6 xx 10^(-5)N`

C

`7.6 xx 10^(-5)N`

D

`9.6 xx 10^(-5)N`

Text Solution

Verified by Experts

The correct Answer is:
D
Here, `I_(1)=2A, I_(2)=12A, r = 100mm=0.1m, l=2m`
Now total force on length l of smal conductor
`F=(mu_(0))/(4pi)xx(2I_(1)I_(2))/(r)l=(10^(-7)xx2xx2xx12xx2)/(0.1)=9.60xx10^(-5)N`
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