A circular loop of wire is in the same plane | vedclass

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(B) The magnetic field produced by the long wire carrying current $i$ is directed into the plane of the paper (inward) at the location of the loop.Acc

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$E$

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(B) The magnetic field produced by the long wire carrying current $i$ is directed into the plane of the paper (inward) at the location of the loop.According to Lenz's law,the induced current in the loop will oppose the change in magnetic flux linked with it.For a clockwise current to be induced in the loop,the magnetic flux through the loop must decrease (as per the right-hand rule,a clockwise current produces an inward magnetic field,which would oppose a decrease in the existing inward flux).The magnetic flux linked with the loop decreases when the loop is moved away from the current-carrying wire.Looking at the diagram,moving the loop in the direction $E$ (East) increases the distance from the wire,thereby decreasing the magnetic flux through the loop. Thus,a clockwise current is induced when the loop is pulled towards $E$.

$A$ circular loop of wire is in the same plane as an infinitely long wire carrying a constant current $i$. Four possible motions of the loop are marked by $N, E, W$,and $S$ as shown below. $A$ clockwise current is induced in the loop when the loop is pulled towards:

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