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Electrostatic and Capacitance

Electrostatic and Capacitance
Electric displacement is a______quantity.

Vector quantity
Scalar quantity
None of the listed here
Both scalar & vector

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Electrostatic and Capacitance
capacitors are used in transistor circuits.

Electrolytic
Ceramic
Paper
Air

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

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Electrostatic and Capacitance
A condenser suitable for D.C. only is

Poled aluminium electrolytic condenser
Metallic paper capacitor
Metallic plate variable gang condenser
Oil impregnated paper condenser

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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 ?

50 pF
200 pF
150 pF
100 pF

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Electrostatic and Capacitance
For closer tolerances which of the following capacitors is usually preferred ?

Paper capacitor
None of these
Mica capacitor
Ceramic disc capacitor

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