Two parallel wires in free space are 
apart and each carries a current of 
in the same direction. The force exerted by one wire on the other (per unit length) is
A
[attractive]
B
[attractive]
C
[repulsive]
D
[repulsive]
Text Solution
Verified by ExpertsThe correct answer is:
A
Given that, 
Force per unit length exerted by one wire on the other will be,
As the direction of currents is same, so the force is attractive.
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