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Questions  

A rectangular loop carrying a current ‘i’ is situated near a long straight wire such that the wire is parallel to one of the sides of the loop and is in the plane of the loop. If steady current I is established in the wire as shown in figure, the loop will

a
Rotate about an axis parallel to the wire
b
Move away from the wire
c
Move toward the wire
d
Remain stationary

detailed solution

Correct option is C

Attractive force with wire (1) is  F1 . And the repulsive force with wire (2) is  F2Now, F1→>F2→ So, on a net the loop will feel  net  attractive force, Hence it will move towards the wire.

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