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Electrostatic and Capacitance

Electrostatic and Capacitance
Which of the following capacitors has relatively shorter shelf life ?

Mica
Ceramic
Electrolytic
Paper

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Electrostatic and Capacitance
The value of E within the field due to a point charge can be found with the help of

None of these
Faraday’s laws
Kirchhoff's laws
Coulomb’s laws

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Electrostatic and Capacitance
The unit of capacitance is

Hennry
Farady
Ohm
Farady/m

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Electrostatic and Capacitance
An uncharged capacitor and a 1 kΩ resistor are connected in series with a switch and a 6 V battery. At the instant the switch is closed, the voltage across the capacitor is

2 V
0 V
6 V
3 V

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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

0.8 s
0.4 s
0.6 s
1.2 s

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Electrostatic and Capacitance
While testing a capacitor with ohm meter, if the capacitor shows charging, but the final resistance reading is appreciably less than normal, it can be concluded that the capacitor is

Leaky
Open-circuit
Alright
Short-circuit

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