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Electrostatic and Capacitance

Electrostatic and Capacitance
One volt is the same as

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

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Electrostatic and Capacitance
A dielectric material must be

Good conductor
Insulator
Resistor
Semi conductor

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Electrostatic and Capacitance
In order to remove static electricity from machinery

insulate the machinery
humidify the surroundings
construct insulated cabins
ground the framework

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Electrostatic and Capacitance
A capacitor and a resistor are connected in series to a sine wave generator. The frequency is set so that the capacitive reactance is equal to the resistance and, thus, an equal amount of voltage appears across each component. If the frequency is increased

VC > VR
VR and VC = 0
VR = VC
VR > VC

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

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

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Electrostatic and Capacitance
If an ohmmeter reading immediately goes practically to zero and stays there, capacitor is

Charged
Short-circuited
Satisfactory
Lossy

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MORE MCQ ON Electrostatic and Capacitance

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