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Electrostatic and Capacitance

Electrostatic and Capacitance
If three 15 uF capacitors are connected in series, the net capacitance is

10 uF
15 uF
20 uF
5 uF

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Electrostatic and Capacitance
What is the value of capacitance that must be connected in parallel with 50 pF condenser to make an equivalent capacitance of 150 pF ?

200 pF
50 pF
150 pF
100 pF

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Electrostatic and Capacitance
Five time constants are required for a capacitor to charge fully or discharge fully.

1

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Electrostatic and Capacitance
Which of the following is not a vector ?

Angular momentum
Electric field
Linear momentum
Electric potential

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Electrostatic and Capacitance
Air capacitors are generally available in the range

10 to 400 pF
100 to 500 pF
200 to 300 pF
1 to 20 pF

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Electrostatic and Capacitance
Two plates of a parallel plate capacitor after being charged from a constant voltage source are separated apart by means of insulated handles, then the

Voltage across the plates increases
Charge on the capacitor increases
Charge on the capacitor decreases
Voltage across the plates decreases

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