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Electrostatic and Capacitance

Electrostatic and Capacitance
A capacitance of 100 fiF is connected in series with a resistance of 8000 £2. The time constant of the circuit is

0.4 s
0.8 s
1.2 s
0.6 s

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Electrostatic and Capacitance
The time constant and R-C circuit may also be defined as the time during which the charging current falls to ______ percent of its initial maximum value

54
42
45
37

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Electrostatic and Capacitance
A 330 pF capacitor and a 220 pF capacitor are each connected across a 6 V dc source. The voltage across the 330 pF capacitor is

6 V
3 V
0 V
4 V

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Electrostatic and Capacitance
When a dielectric slab is introduced in a parallel plate capacitor, the potential difference between plates will

Increase
None of the listed here
Decrease
Remains same

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Electrostatic and Capacitance
Two series capacitors (one 2 µF, the other of unknown value) are charged from a 24 V source. The 2 µF capacitor is charged to 16 V and the other to 8 V. The value of the unknown capacitor is

8 µF
1 µF
2 µF
4 µF

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Electrostatic and Capacitance
XC is inversely proportional to frequency and capacitance.

1

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