Induction is greater in a coil when
AThe flux is steady all the time
BThe change in flux is slower
CThe change in flux is faster
DThe coil is far away from any magnet
Answer & Solution
Correct answer: C. The change in flux is faster
1. Induced emf depends on the rate of change of flux.
2. Faster change produces a larger induced emf.
3. A steady flux gives zero emf.
4. So option A is correct.
_Source: Selina Concise Physics Class 10, Ch 10 Electromagnetism (Mistral OCR'd PDF), section on rate of change of flux_
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