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Capacitors - General Questions (4)

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Capacitors - General Questions

25. 

Which material has the highest dielectric strength?

A. Air
B. Paper
C. Mica
D. Oil

Answer: Option C

Explanation:

No answer description available for this question.

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26. 

When a circuit consists of a capacitor and a resistor in series with a voltage source, and the voltage across the resistor is zero, then the capacitor is:

A. charging
B. discharging
C. fully charged
D. fully discharged

Answer: Option C

Explanation:

No answer description available for this question

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27. 

The material used between the plates of a capacitor is called its:

A. insulation material
B. dielectric material
C. separation material
D. plate-divider material

Answer: Option B

Explanation:

No answer description available for this question

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28. 

An 8 V power source is charging a capacitor. How many volts will be across the capacitor at the second time constant?

A. 1 volt
B. 3 volts
C. 5 volts
D. 7 volts

Answer: Option D

Explanation:

No answer description available for this question

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29. 

mcq9_1005_1 (1)

How long would it take the capacitor in the given circuit to completely charge if the switch was in position 1?

 

A. 22 ms
B. 69 ms
C. 345 ms
D. 440 ms

Answer: Option C

Explanation:

No answer description available for this question

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30. 

A source voltage across a capacitor will:

A. lead the current by 90 degrees
B. lead the current by 180 degrees
C. lag the current by 90 degrees
D. lag the current by 180 degrees

Answer: Option C

Explanation:

No answer description available for this question.

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31. 

Capacitor value markings are usually:

A. alphanumeric
B. color dabs
C. standard
D. white print

Answer: Option A

Explanation:

No answer description available for this question

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32. 

Power stored from the source and then returned to the source is called:

A. apparent power
B. impedance power
C. reactive power
D. true power

Answer: Option C

Explanation:

No answer description available for this question

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