AP EAMCET · PHYSICS · Electromagnetic Induction
The induced emf cannot be produced by:
- A Moving a magnet near a circuit
- B Moving a circuit near a magnet
- C Changing the current in one circuit placed near the other
- D Maintaining large but constant current in a circuit
Answer & Solution
Correct Answer
(D) Maintaining large but constant current in a circuit
Step-by-step Solution
Detailed explanation
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.
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