Question:
Coils P and Q. Current in P induces current in Q. (a) Explain the phenomenon. (b) Two factors affecting current in Q. (c) Direction of current in Q when current is in P and (i) R increases, (ii) R decreases.
Coils P and Q. Current in P induces current in Q. (a) Explain the phenomenon. (b) Two factors affecting current in Q. (c) Direction of current in Q when current is in P and (i) R increases, (ii) R decreases.
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Lenz's Law and factors affecting induced current.
Updated On: Jan 13, 2026
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Solution and Explanation
(a) Mutual induction: Changing current in P creates changing magnetic flux, inducing emf and current in Q. (b) 1. Rate of change of current in P. 2. Number of turns in Q. (c) (i) Same as P (to oppose flux decrease). (ii) Opposite to P (to oppose flux increase).
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