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Electrostatic and Capacitance

Electrostatic and Capacitance
The true power in a capacitor is zero.

1

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Electrostatic and Capacitance
The electrostatic force between two charges of one coulomb each and placed at a distance of 0.5 m will be

36 x 10 fa
36 x 107 N
36 x 108 N
36 x 109 N

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Electrostatic and Capacitance
The ohmmeter reading for a short circuited capacitor is

None of the listed here
Zero
Few kilo ohm
Infinity

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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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Electrostatic and Capacitance
A single core cable used on 33000 V has conductor diameter 10 mm and the internal diameter of sheath 25 mm. The maximum electrostatic stress in the cable is

92 x 105 V/m
72 x 105 V/m
62 x 105 V/m
82 x 105 V/m

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Electrostatic and Capacitance
When a dielectric is placed in an electric field the field strength

None of the listed here
Remains same
Decrease
Increase

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