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Electrostatic and Capacitance

Electrostatic and Capacitance
One volt is the same as

one joule/coulomb
one coulomb
one coulomb/joule
one joule

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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

4 µF
1 µF
2 µF
8 µF

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Electrostatic and Capacitance
Two infinite parallel plates 10 mm apart have maintained between them a potential difference of 100 V. The acceleration of an electron placed between them is

0.56 x 1015 m/s2
1.76 x 1015 m/s2
1.5 x 1015 m/s2
1.6 x 1015 m/s2

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Electrostatic and Capacitance
Which of the following material has least value of dielectric constant ?

Paper
Mica
Oil
Ceramic

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Electrostatic and Capacitance
capacitors are used in transistor circuits.

Air
Ceramic
Paper
Electrolytic

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Electrostatic and Capacitance
The absolute permittivity of free space is given by

8.854 x 1(T10 F/m)
8.854 x 10?12 F/m
8.854 x KT11 F/m
8.854 x 1(T9 F/m)

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