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Capacitance Theory Quiz Questions and Answers1
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Question 1 of 15
1. Question
1 pointsThe capacitance preferred for high frequency circuit is……………….
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Question 2 of 15
2. Question
1 pointscapacitance increases with ………..
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Question 3 of 15
3. Question
1 pointsWhen 2 volts e.m.f is applied across a 2 farad capacitor, it will store energy of …………..
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Answer: 4 joules
Explanation:
Energy stored in capacitor = 1/2 CV^{2}
= 1/2 * 2 * (2)^{2}
= 4 joules 
Question 4 of 15
4. Question
1 pointsIf a 4 μF capacitor is charged to 120 V , the charge in Coulombs will be ……..
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Incorrect
Answer: 480 μC
Explanation:
Coulombs Q = CV
= 4 μF * 120 V
= 480 μC 
Question 5 of 15
5. Question
1 pointsTwo C Farads of capacitors are connected in series. What is the total capacitance in circuit?
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Incorrect
Answer: C/2
Explanation:
total capacitance of circuit = C_{1} C_{2} / (C_{1} + C_{2} )
= (C * C ) (C+C)
= C^{2} / 2C
= C/2 
Question 6 of 15
6. Question
1 pointsThree capacitors of 6 μF , 4μF and 10μF are connected in parallel. The total capacitance is …………..
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Incorrect
Answer: 20 μF
Explanation:
total N parallel capacitance = C_{1} + C_{2} + …..+ C_{N}
= 6 μF + 4 μF + 10 μF
= 20 μF 
Question 7 of 15
7. Question
1 points1K Hz source is applied to 4 μF capacitor, what is the capacitive reactantance?
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Incorrect
Answer: 39.80
Explanation:
X_{c} = 1/ 2πfC
= 1 / ( 2 * π * 1 * 10^{3} * 4 * 10^{6} )
= 1/ ( 8 * 3.14 * 10^{3} )
= 1000 / 25.12
= 39.80^{} 
Question 8 of 15
8. Question
1 pointsWhat is the relation between current and voltage in capacitor?
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Question 9 of 15
9. Question
1 pointsThe capacitor stores the energy in the form of ……………….
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Question 10 of 15
10. Question
1 pointsA capacitor Consists of ………………………
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Question 11 of 15
11. Question
1 pointsCorrect
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µ

Question 12 of 15
12. Question
1 pointsThe material placed in between two parallel plates of capacitor is …………………..
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Question 13 of 15
13. Question
1 pointsThe capacitor acts as ………………………… for high frequency.
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Question 14 of 15
14. Question
1 pointsWhich of the following capacitors has the polarity?
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Question 15 of 15
15. Question
1 pointsThe capacitance is directly proportional to ……………………………..
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