Questions
Two thin long parallel wires separated by a distance d carry a current i amp in the same direction. They will
a
repel each other with a force μ0i2/2πd2
b
attract each other with a force of μ0i2/2πd2
c
repel each other with a force of μ0i2/2πd2
d
attract each other with a force μ0i2/(2πd)
detailed solution
Correct option is D
See fig. So, the two wires will attract each otherwhere l is the length of the wire. Fl=iB=iμ0i2πd=μ0i22πdThe force will be attractive.Talk to our academic expert!
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Two thin long parallel wires separated by a distance b carrying a current i ampere each. The magnitude of the force per unit length exerted by one wire on the other is
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