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Two coils sit still. You press the tapping key in the battery coil. The other coil's galvanometer shows:
ANothing at all
BA slow drift
CA momentary kick
DA steady reading
Answer & Solution
Correct answer: C. A momentary kick
1. Pressing the key makes the current rise from zero.
2. The rising field changes the flux in the second coil.
3. The galvanometer gives a momentary kick.
_Source: NCERT Class 12 Physics Part I, Chapter 6, Electromagnetic Induction._
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