The induced emf cannot be produced by:

The induced emf cannot be produced by:
  1. Moving a magnet near a circuit
  2. Moving a circuit near a magnet
  3. Changing the current in one circuit placed near the other
  4. Maintaining large but constant current in a circuit

Solution

Faraday's law states that changing magnetic field induces a changing emf in a nearby conductor and changing current produces a changing magnetic field around the conductor.

Therefore, induced emf cannot be produced maintaining large but constant current in a circuit.

Asked in: AP EAMCET 2021 (20 Aug Shift 1)

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