alleryA current may be induced in a coil by flux change from another coil that is:
ASwitched off
BDisconnected
CClose nearby
DVery far off
Answer & Solution
Correct answer: C. Close nearby
1. The second coil must be able to thread flux through the first.
2. That requires it to be close enough to matter.
3. So it must be a coil in its vicinity.
_Source: syllabus Physics Part I, Chapter 6, Electromagnetic Induction._
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