Electrical Engineering MCQs

Page No. 188

Electric intensity at any point in an electric field is equal to the at that point?


aelectric flux

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b magnetic flux density

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c potential gradient

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d none of the above

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View Answer potential gradient

The unit of dielectric strength is given by___________?


aV/m

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bV2/m

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c m/V

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dm/V2

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View Answer V/m

Electric displacement is a__________quantity


ascalar

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bvector

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cboth of the above

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d none of the above

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View Answer vector

is that property of a capacitor which delays any change of voltage across it ?


aInductance

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bCapacitance

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cPotential gradient

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dNone of the above

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View Answer Capacitance

One volt is the same as___________?


aone joule/coulomb

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bone coulomb/joule

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cone coulomb

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done joule

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View Answer one joule/coulomb

Which medium has the least dielectric strength ____________?


aParaffin wax

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bQuartz

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cGlass

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d Air

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View Answer Air

Permittivity is expressed in_____________?


a Farad/sq-m

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bFarad/meter

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c Weber/meter

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dWeber/sq-m

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View Answer Farad/meter

The property of a capacitor to store electricity is called its____________?


a capacitance

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bcharge

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cenergy

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dnone of the above

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View Answer capacitance

In a cable capacitor, voltage gradient is maximum at the surface of the______________?


aearth

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bconduction

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csheath

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d insulator

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View Answer conduction

A capacitance of 100 fiF is connected in series with a resistance of 8000 £2. The time constant of the circuit is______________?


a 0.2 s

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b 0.4 s

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c 0.6 s

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d0.8 s

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View Answer 0.8 s

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