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Moving Charges and Magnetism

  1. A square loop, carrying a steady current I, is placed in a horizontal plane near a long straight conductor carrying a steady current I1 at a distance d from the conductor as shown in figure. The loop will experience
    1. a net repulsive force away from the conductor ​
    2. ​a net torque acting upward perpendicular to the horizontal plane
    3. a net torque acting downward normal to the horizontal plane ​
    4. a net attractive force towards the conductor
Correct Option: D


​F1 > F2 as and F3 and F4 are equal and opposite. Hence, the net attraction force will be towards the conductor.



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