Home Physics Electrostatics Potential & Capacitance Capacitance A fresh dry cell of 1.5 volt and two resisto…
Physics Electrostatics Potential & Capacitance Capacitance MCQ (Single Correct)

A fresh dry cell of 1.5 volt and two resistors of 10 kΩ each are connected in series. An analog voltmeter measures a voltage of 0.5 volt across each of the resistors. A 100µF capacitor is fully charged using the same source. The same voltmeter is now used to measure the voltage across it. The initial value of the current and the time in which the voltmeter reading falls to 0.5 volt are respectively.

A
60µA, 11s
B
120µA, 15s
C
150µA, 15s
D
150µA, 1.1 s

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Verified by Experts
The correct answer is:
D

Let the resistance of the voltmeter be R k

Voltmeter reading : 0.5 V

Initial current :
Voltage across the capacitor :

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