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4) Two wires run from the ceiling to the floor and the distance between them is 10 cm. Wire A carries a current I. Wire B car

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Answer #1

We don't know the direction of current in both the wire so we cannot say that the force on each other will be attractive or repulsive. Now the force, F exerted by any wire per unit length to the other wire is proportional to the product of the currents in each wire(I*2I) and inversly proportional to the distance between them (10cm). Hence force exerted by any wire to the another wire is same, but the the direction is opposite. So all the above option are incorrect which says to exert different forces on the different wire.

Option (e) is correct: None of the other statements are true.

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