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Electrostatic and Capacitance

Electrostatic and Capacitance
Dielectric strength of a material depends on

all of the listed here
moisture content
thickness
temperature

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Electrostatic and Capacitance
What is the capacitance when Q = 60 µC and V = 12 V?

12 µF
50 µF
720 µF
5 µF

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Electrostatic and Capacitance
What is the value of capacitance that must be connected in parallel with 50 pF condenser to make an equivalent capacitance of 150 pF ?

100 pF
150 pF
50 pF
200 pF

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Electrostatic and Capacitance
Dielectric strength of a medium is usually expressed in

C/mm
N/mm
None of the listed here
KV/mm

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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
82 x 105 V/m
62 x 105 V/m

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Electrostatic and Capacitance
Dielectric strength of medium

None of the listed here
Is same for all insulating materials
Increases with rise in temperature
Increases with moisture content

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MORE MCQ ON Electrostatic and Capacitance

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