A current-carrying wire is placed below a coil in its plane, with current flowing as shown. If the current increases
no current will be induced in the coil
an anticlockwise current will be induced in the coil
a clockwise current will be induced in the coil
the current induced in the coil will be first anticlockwise and then clockwise
The magnetic flux through the coil, due to the current I flowing in the wire will be coming out of the plane of paper (or plane of the coil) When the current I through the wire increases, the magnetic flux produced by it also increases. Therefore, according to Lenz’s law, the induced current in the coil will be such a direction so as to oppose this increase in magnetic flux. That is, the induced current in coil should produce a magnetic flux directed into the paper. Applying right-hand rule, we find that the direction of induced current in the coil must be clockwise.
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