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A rectangular loop carrying a current i is situated near a long straight wire such that the wire is parallel to one of the loop and is in the plane of the loop. If steady current I is established in the wire as shown in the figure, the loop will 
  • a)
    rotate about an axis parallel to the wire 
  • b)
    move away from the wire 
  • c)
    move towards the wire 
  • d)
    remain stationary
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A rectangular loop carrying a current i is situated near a long straig...
For the loop, using Lenz’s Law, the force on the part which is nearer, due to the current in the long wire is attraction and force on the part which is farther is repulsion.
F (atttaction) > F(repulsion)
Hence loop moves towards the wire.
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A rectangular loop carrying a current i is situated near a long straight wire such that the wire is parallel to one of the loop and is in the plane of the loop. If steady current I is established in the wire as shown in the figure, theloop willa)rotate about an axis parallel to the wireb)move away from the wirec)move towards the wired)remain stationaryCorrect answer is option 'C'. Can you explain this answer?
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