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Electrostatic and Capacitance

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

None of the listed here
Increase
Remains same
Decrease

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Electrostatic and Capacitance
Which is the most superior dielectric out of the following ?

Glass
Paper
Air
Bakelite

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Electrostatic and Capacitance
The force between two charges is 120 N. If the distance between the charges is doubled, the force will be

30 N
120 N
40 N
60 N

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Electrostatic and Capacitance
A capacitor and a resistor are connected in series to a sine wave generator. The frequency is set so that the capacitive reactance is equal to the resistance and, thus, an equal amount of voltage appears across each component. If the frequency is increased

VR = VC
VR and VC = 0
VC > VR
VR > VC

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Electrostatic and Capacitance
Which of the following capacitor is preferred in case of single phase motor ?

Electrolytic
Air
Paper
Mica

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Electrostatic and Capacitance
A gang condenser is a

Ceramic capacitor
Polarised capacitor
None of the listed here
Variable Capacitance

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