alleryDoubling the number of turns of a coil changes the induced emf by:
ADoubling it
BHalving it
CLeaving it
DZeroing it
Answer & Solution
Correct answer: A. Doubling it
1. Each turn contributes the same change of flux.
2. The contributions of the turns add together.
3. So twice the turns gives twice the emf.
_Source: syllabus Physics Part I, Chapter 6, Electromagnetic Induction._
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