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Q.
The time rate of change of magnetic flux through a circuit induces ......... in circuit.
Electromagnetic Induction
Solution:
Emf, observations indicate that if circuit is open, then opposite charges accumulate on opposite ends of conductor.
When conductor $P Q$ moves downward (in figure) positive charge accumulates at $Q$ and negative charge at $P$. So, emf across $P Q$ is induced. Flow of charge (current) is induced in closed circuit only. Emf is induced in both open and closed circuits.
Here, in this question emf is most appropriate.
