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(C) The magnetic field produced by the long straight wire at a distance $r$ is given by $B = \frac{\mu_0 i}{2\pi r}$.For the side of the loop closer t

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Move towards the wire

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(C) The magnetic field produced by the long straight wire at a distance $r$ is given by $B = \frac{\mu_0 i}{2\pi r}$.For the side of the loop closer to the wire at distance $r_1$,the current flows in the same direction as the wire. According to Fleming's left-hand rule,the force $F_1$ on this side is attractive (towards the wire).For the side of the loop farther from the wire at distance $r_2$,the current flows in the opposite direction to the wire. The force $F_2$ on this side is repulsive (away from the wire).Since $r_1  B_2)$.Consequently,the attractive force $F_1$ is greater than the repulsive force $F_2$ $(F_1 > F_2)$.Therefore,the net force $F_{net} = F_1 - F_2$ acts towards the wire,and the loop will move towards the wire.

$A$ 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 a steady current $i$ is established in the wire as shown in the figure,the loop will

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