Question 315: Electromagnetic Induction

Question

Metal rings $P$ and $Q$ are lying in the same plane, where current I is increasing steadily. The induced current in metal rings is shown correctly in figure

Accepted Answer

According to right hand thumb rule, the direction of magnetic field in ring $P$, due to current in wire will be perpendicularly outward from plane of paper.
Using Lenz's law, when the current in the wire is increasing, the direction of induced current in ring $P$ will be such that, it opposes the increasing current in wire. For this, the upper face of the ring acts like South pole and lower face acts like North pole. Thus, the direction of induced current in ring $P$ is clockwise.
Similarly, the direction of induced current in ring $Q$ is anti-clockwise.

Answer

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Answer

Electromagnetic Induction

Metal rings P and Q are lying in the same plane, where current I is increasing steadily. The induced current in metal rings is shown correctly in figure

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