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A current caring wire AB is placed near another long current carrying wire CD. If free to move AB will have D.

$(a)\;\text{translational motion only } \\(b)\;\text{rotational motion only } \\ (c)\;\text{both translational and rotational motion.} \\ (d)\;\text{will not move } $

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Since the magnetic field due to wire CD and the wire AB is not uniform neither the torque nor the force on the wire AB is uniform.
Therefore the wire will have both rotational and translational motion.
Hence c is the correct answer.
answered Mar 27, 2014 by meena.p

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