alleryElectromagnetic induction is the phenomenon in which
AA changing magnetic flux induces an emf
BA constant magnetic flux induces an emf
CA constant current induces a fixed force
DAn electric charge induces a sound wave
Answer & Solution
Correct answer: A. A changing magnetic flux induces an emf
1. The chapter introduces electromagnetic induction.
2. Only a changing flux produces an induced emf.
3. A steady flux gives no induced emf.
4. So option A is correct.
_Source: Selina Concise Physics Class 10, Ch 10 Electromagnetism (Mistral OCR'd PDF), section on EM induction_
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