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Electrostatic and Capacitance

Electrostatic and Capacitance
The relative permittivity has the following units

F/m
Wb/m
m/F
no units

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Electrostatic and Capacitance
Three capacitors each of the capacity C are given. The resultant capacity 2/3 C can be obtained by using them

all in series
all in parallel
two in series and third in parallel across this combination
two in parallel and third in series with this combination

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Electrostatic and Capacitance
Which medium has the least dielectric strength ?

Paraffin wax
Glass
Water
Air

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Electrostatic and Capacitance
A capacitor having capacitance of 5 uF is charged to a potential difference of 10,000 V. The energy stored in the capacitor is

200 joules
150 joules
50 joules
250 joules

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Electrostatic and Capacitance
The ability of charged bodies to exert force on 6ne another is attributed to the existence of

protons
electrons
electric field
neutrons

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Electrostatic and Capacitance
Four 0.15 µF capacitors are in parallel. The total capacitance is

0.15 µF
0.30 µF
0.8 µF
0.6 µF

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