alleryAn induced emf in a loop can be produced only by changing the:
AMagnetic flux
BLoop material
CLoop colour
DLoop weight
Answer & Solution
Correct answer: A. Magnetic flux
1. Several different arrangements produce an induced emf.
2. All of them come down to one common cause.
3. That cause is a change in the magnetic flux through the loop.
_Source: syllabus Physics Part I, Chapter 6, Electromagnetic Induction._
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