An infinitely long, straight conductor AB is fixed and a current is passed through it. Another movable straight wire CD of finite length and carrying current is held perpendicular to it and released. Neglect weight of the wire

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(a) The rod CD will move upwards parallel to itself |
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(b) The rod CD will move downward parallel to itself |
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(c) The rod CD will move upward and turn clockwise at the same time |
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(d) The rod CD will move upward and turn anti –clockwise at the same time |
