Home Physics Alternating Current Karnataka - CET Previous Year Question A capacitor and an inductance coil are conne…
Physics Alternating Current Karnataka - CET Previous Year Question MCQ (Single Correct)

A capacitor and an inductance coil are connected in separate circuits with a bulb glowing in both the circuits. The bulb glows more brightly when

A
an iron rod is introduced into the inductance coil.
B
the number of turns in the inductance coil is increased
C
separation between the plates of the capacitor is increased.
D
a dielectric is introduced into the gap between the plates of the capacitor

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Verified by Experts
The correct answer is:
D

Current,
If a dielectric is introduced into the gap between the plates of capacitor. Its capacitance will increase and hence, impedance of the circuit will decrease. Thus, current and hence brightness of the bulb increase.

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