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AP Physics 2
12.4 Electromagnetic Induction and Faraday’s Law
BeginnerMCQConceptual12.8k
A vertical bar magnet positioned along the central vertical axis above a horizontal circular copper ring. The magnet has its north pole labeled N at the bottom end and its south pole labeled S at the top end. A straight vertical arrow labeled v points downward from the bottom of the magnet toward the center of the ring. The copper ring is drawn as a thin horizontal ellipse to indicate perspective. An observer eye symbol is drawn above the setup looking downward along the vertical axis. No other labels, lines, text, or axes appear.
A bar magnet falling toward a stationary copper ring.
A bar magnet with its north pole facing downward is released from rest above a stationary, horizontal copper ring, as shown. As the magnet falls toward the ring, an observer looking down from above monitors the induced current. Which of the following correctly indicates the direction of the induced current in the ring as viewed from above and the direction of the net magnetic force exerted on the magnet by the ring as the magnet approaches?

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