Capacitors electronic interview question

41.

What is the voltage across a capacitor after being charged from a 100 V source for a period of one time constant?
A.     37.8 V
B.     38 V
C.     63 V
D.     101 V
Answer & Explanation

Answer: Option C

Explanation:

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42.

What is the dc charging/discharging time constant for the circuit?

A.     294 ps
B.     13.5 ms
C.     21.25 ms
D.     2.16 Gs
Answer & Explanation

Answer: Option C

Explanation:

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43.

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 & Explanation

Answer: Option C

Explanation:

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44.

Capacitor value markings are usually:
A.     alphanumeric
B.     color dabs
C.     standard
D.     white print
Answer & Explanation

Answer: Option A

Explanation:

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45.

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 & Explanation

Answer: Option C

Explanation:

No answer description available for this question.