alleryInduced emf depends on the time rate of change of:
ACoil material
BRoom temperature
CMagnetic flux
DWire thickness
Answer & Solution
Correct answer: C. Magnetic flux
1. A steady field through a coil induces nothing.
2. Only a changing linkage drives an emf.
3. The emf equals the time rate of change of magnetic flux.
4. So the answer is magnetic flux.
_Source: syllabus Physics, Ch 6 'Electromagnetic Induction'_
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