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Free download in PDF Capacitance Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(1)
Capacitor is a device used to__________
[A]
store electrical energy
[B]
vary the resistance
[C]
store magnetic energy
[D]
dissipate energy
Answer: store electrical energy
(2)
Capacitor stores which type of energy?
[A]
potential energy
[B]
heat energy
[C]
kinetic energy
[D]
vibrational energy
(3)
For which medium capacitance is high?
[A]
Metal
[B]
Water
[C]
Mica
[D]
Air
(4)
Which of the following is a passive device?
[A]
Vaccuum Tubes
[B]
Capacitor
[C]
Rectifier
[D]
Transistor
(5)
What is the value of capacitance of a capacitor which has a voltage of 4V and has 16C of charge?
[A]
4F
[B]
8F
[C]
2F
[D]
6F
(6)
Why does capacitor block dc signal at steady state?
[A]
due to zero frequency of dc signal
[B]
capacitor doesnot pass any current at steady state
[C]
due to zero frequency of dc signal
[D]
due to high frequency of dc signal
Answer: due to zero frequency of dc signal
(7)
Capacitor blocks__________ after long time.
[A]
direct current
[B]
alternating current
[C]
both alternating and direct current
[D]
neither alternating nor direct current
(8)
The capacitance between two plates increases with
[A]
Larger plate area and shorter distance between plates
[B]
Larger plate area, longer distance between plates and higher applied voltage
[C]
Shorter play area and shorter distance between them
[D]
Shorter plate area and higher applied voltage
Answer: Larger plate area and shorter distance between plates
(9)
..........is that property of a capacitor which delays any change of voltage across it
[A]
Capacitance
[B]
Potential gradient
[C]
Inductance
[D]
None of the above
(10)
A capacitor consists of two
[A]
Conductors separated by an insulator
[B]
Silver coated insulators
[C]
Ceramic plates and one mica disc
[D]
Insulators separated by a dielectric
Answer: Conductors separated by an insulator
(11)
..............field is associated with the capacitor
[A]
Magnetic
[B]
Electric
[C]
Both A and B
[D]
none of the mentioned
(12)
Which of the following capacitors will have least energy stored in it ?
[A]
A 600 μF capacity charged to 15 KG
[B]
A 1 μF capacitor charge to 5 KV
[C]
A 20 μF capacitor is charged to 400 volt
[D]
Energy stored in each above will be same
Answer: A 600 μF capacity charged to 15 KG
(13)
A capacitor consists of
[A]
Two conductors separated by an insulator
[B]
Two insulators separated by a conductor
[C]
Two insulators only
[D]
Two conductors only
Answer: Two conductors separated by an insulator
(14)
In a capacitor the electric charge is stored in
[A]
Dielectric
[B]
Metal plates
[C]
Both A and B
[D]
None of the above
(15)
In the case of a lossy capacitor, its series equivalents resistance value will be
[A]
Very small
[B]
Small
[C]
Large
[D]
Zero
(16)
Which of the following capacitors will have the least value of breakdown voltage?
[A]
Electrolytic
[B]
Ceramic
[C]
Mica
[D]
Paper
(17)
Which capacitor will be physically smaller for the same ratings ?
[A]
Paper capacitor
[B]
Ceramic capacitor
[C]
Both will be equal size
[D]
None of the above
Answer: Ceramic capacitor
(18)
The capacitor preferred for high-frequency circuit is
[A]
Mica capacitor
[B]
Air capacitor
[C]
Electrolytic capacitor
[D]
None of the above
(19)
Which of the following capacitors has relatively shorter shelf life?
[A]
Electrolytic capacitor
[B]
Paper capacitor
[C]
Ceramic capacitor
[D]
Mica capacitor
Answer: Electrolytic capacitor
(20)
Which of the following capacitors will have the least variation?
[A]
Silver plated mica capacitor
[B]
Ceramic capacitor
[C]
Paper capacitor
[D]
None of the above
Answer: Silver plated mica capacitor
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