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.Management Sciences
Category: Electrostatics
A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is_____________?
A. 0.024 F
B. 0.12 F
C. 0.6 F
D. 0.8 F
Equivalent capacitance is greater than individual capacitances in_____________?
A. series combination
B. parallel combination
C. both series and parallel combinations
D. none of above
If the distance between the two point charges become half then force between them becomes______________?
A. double
B. half
C. four times
D. remains same
In a capacitor, the electric charge is stored in_________?
A. metal plates
B. dielectric
C. dielectric as well as metal plates
D. none of the above
Which of the following capacitors can be used for temperature compensation ?
A. Air capacitor
B. Ceramic capacitor
C. Paper capacitor
D. None of the above
The electrostatic force between two charges of one coulomb each and placed at a distance of 0.5 m will be____________?
A. 36 x 10fa
B. 36 x 107 N
C. 36 x 108 N
D. 36 x 109 N
Which of the following statements is incorrect _________________?
A. The leakage resistance of ceramic capacitors is generally high
B. The stored energy in a capacitor decreases with reduction in value of capacitance
C. The stored energy in a capacitor increases with applied voltage
D. A wire cable has distributed capacitance between the conductors
When the dielectric is homogeneous,the potential gradient is_____________?
A. uniform
B. non-uniform
C. zero
D. any of the above
Which of the following capacitors will have the least value of breakdown voltage________ ?
A. Mica
B. Paper
C. Ceramic
D. Electrolytic
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