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Electrostatic and Capacitance

Electrostatic and Capacitance
Which of the following capacitors is polarized?

Electrolytic
Mica
Ceramic
Plastic-film

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Electrostatic and Capacitance
The time constant and R-C circuit may also be defined as the time during which the charging current falls to ______ percent of its initial maximum value

37
54
45
42

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Electrostatic and Capacitance
A capacitance of 100 fiF is connected in series with a resistance of 8000 £2. The time constant of the circuit is

0.8 s
1.2 s
0.4 s
0.6 s

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

electric field
neutrons
protons
electrons

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Electrostatic and Capacitance
One volt is the same as

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

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Electrostatic and Capacitance
An electrolytic capacitor can be used for

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

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