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Electrostatic and Capacitance

Electrostatic and Capacitance
A potential of 400 V is applied to a capacitor, the plates of which are 4 mm apart. The strength of electric field is

10 KV/m
50 KV/m
100 KV/m
30 KV/m

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Electrostatic and Capacitance
A capacitance is a circuit component that opposes the change in circuit

Impedance
Voltage
None of the listed here
Current

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Electrostatic and Capacitance
An electrolytic capacitor can be used for

AC only
None of the listed here
DC only
Both DC and AC

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Electrostatic and Capacitance
A capacitor in a circuit became hot and ultimately exploded due to wrong connections, which type of capacitor it could be ?

Electrolytic Capacitor
Mica capacitor
All of the listed here
Paper capacitor

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Electrostatic and Capacitance
The dielectric constant (relative permittivity) of glass is given by

5 to 100
0.1 to 0.4
0.5 to 1.0
2.0 to 4.0

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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

170 Ω
1.7 Ω
17 Ω
0.000169 Ω

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