100+ Electrostatics MCQs | Electrical Engineering MCQs | Top MCQs with Answer Quiz |

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91. Electric displacement is a______quantity.


A. scalar
B. vector
C. both of the above
D. none of the above

B. vector

92. The unit of dielectric strength is given by


A. V/m
B. V2/m
C. m/V
D. m/V2

A. V/m

93. Dielectric strength ______ with increasing thickness


A. increases
B. decreases
C. remains unaltered
D. none of the above

B. decreases

94. The property of a capacitor to store electricity is called its


A. capacitance
B. charge
C. energy
D. none of the above

A. capacitance

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


A. Inductance
B. Capacitance
C. Potential gradient
D. None of the above

B. Capacitance

96. 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
B. 0.4 s
C. 0.6 s
D. 0.8 s

D. 0.8 s

97. In a cable capacitor, voltage gradient is maximum at the surface of the


A. earth
B. conduction
C. sheath
D. insulator

B. conduction

98. A capacitor consists of two


A. ceramic plates and one mica disc
B. insulators separated by a dielectric
C. silver-coated insulators
D. conductors separated by an insulator

D. conductors separated by an insulator

99. The time constant of an R-C circuit is defined as the time during which
capacitor charging voltage actually rises to ______ percent of its______value.


A. 37, initial
B. 63.2, initial
C. 63.2, final
D. 37, final

C. 63.2, final

100. The time constant and R-C circuit may also be defined as the time during
which the charging current falls to ______ percent of its initial maximum value,


A. 37
B. 42
C. 63
D. 73

A. 37


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