Electrical Engineering MCQs

Page No. 193

Which of the following capacitors will have the least value of breakdown voltage________ ?


aMica


bPaper


cCeramic


d Electrolytic


View Answer Electrolytic

Which capacitor will be physically smaller for the same ratings ___________?


aCeramic capacitor


bPaper capacitor


cBoth will be of equal size


dNone of the above


View Answer Ceramic capacitor

A mica capacitor and a ceramic capacitor both have the same physical dimensions. Which will have more value of capacitance _______?


aCeramic capacitor


bMica capacitor


cBoth will have identical value of capacitance


dIt depends on applied voltage


View Answer Ceramic capacitor

The capacity of capacitor bank used in power factor correction is expressed in terms of____________?


akW


bkVA


ckVAR


dvolts


View Answer kVAR

The relative permittivity of free space is given by__________?


a 1


b10


c100


d1000


View Answer 1

A gang condenser is a____________?


apolarised capacitor


b variable capacitor


cceramic capacitor


dnone of the above


View Answer variable capacitor

The unit of capacitance is__________?


ahenry


bohm


cfarad


d farad/m


View Answer farad

Air capacitors are generally available in the range_________?


a10 to 400 pF


b1 to 20 pF


c100 to 900 pF


d20 to 100 pF


View Answer 10 to 400 pF

A capacitor charged to 200 V has 2000 (iC of charge. The value of capacitance will be_____________?


a10 F


b10 uF


c100 nF


d1000 uF


View Answer 10 uF

Capacitance increases with_____________?


aincrease in plate area and decrease in distance between the plates


b increase in plate area and distance between the plates


cdecrease in plate area and value of applied voltage


d reduction in plate area and distance between the plates



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