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Lernmaterialien
19) Dielectric strength of a material depend on
moisture content
38) If a dielectric is placed in an electric field, the field strength
decreases
1) Absolute permittivity of a vacuum is taken as
8.854 x 10-6 Farad / m
29) Electrolytic capacitor is the most commonly used type but it has two disadvantages, namely
Low insulation resistance and suitable for d.c. only
37) One farad is
coulomb-Joule
33) The power dissipated in a pure capacitor is
Maximum
20) What will happen to an insulating medium of voltage more than the breakdown voltage is applied or
it will get punctured
2) Relative permittivity of vacuum is
zero
5) Coulomb's Law for the force between electric charges most closely resembles with
Gauss theorem
26) Which statement influence the capacity of a capacitor
Area of the plates, thickness of the plates and the rate of charge
3) In the electric field, the potential is the work done in Joules
to bring positive charge of one coulomb from infinity to that point
41) In the above question, capacitance will become
C0
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