Exam-style question
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When a magnet is moved towards a coil, what happens to the induced current according to Lenz's law?.
- A.The induced current flows in a direction that opposes the magnet's approach.
- B.The induced current flows in the same direction as the magnet's approach.
- C.No current is induced.
- D.The induced current flows randomly.
Model answer
What a good answer should say
- The induced current flows in a direction that opposes the magnet's approach.
Explanation
Why this works
According to Lenz's law, the induced current will flow in a direction that opposes the change in magnetic flux, which in this case is the approach of the magnet.
Common mistake
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