Lenz's Law — RingMediumQuestion 20184
Question
A magnet is pushed toward a conducting ring. The induced current in the ring will:
- ACreate a south pole facing the approaching north pole of the magnet
- BCreate a north pole facing the approaching north pole (repelling)Correct
- CCreate no magnetic pole
- DAttract the magnet
Correct answer
Create a north pole facing the approaching north pole (repelling)
Explanation
Lenz's law: the induced current must oppose the approach. The ring creates a north face toward the incoming north pole → repulsion. This is the classic demonstration: the ring levitates or is repelled.