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Electrostatic and Capacitance

Electrostatic and Capacitance
The dielectric constant is the ability of a material to establish an electric field.

1

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Electrostatic and Capacitance
A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is

0.8 F
0.12 F
0.024 F
0.6 F

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Electrostatic and Capacitance
A 330 pF capacitor and a 220 pF capacitor are each connected across a 6 V dc source. The voltage across the 330 pF capacitor is

3 V
0 V
6 V
4 V

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Electrostatic and Capacitance
If a third equal and similar charge is placed between two equal and similar charges, then this third charge will

be in unstable equilibrium
remain in stable equilibrium
not be in equilibrium
move out of the field of influence of the two charges

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Electrostatic and Capacitance
The relative permittivity has the following units

Wb/m
F/m
m/F
no units

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Electrostatic and Capacitance
A 0.47 µF capacitor is across a 2 kHz sine wave signal source. The capacitive reactance is

17 Ω
1.7 Ω
0.000169 Ω
170 Ω

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