Capacitors electronic interview question

16.

What is the phase shift between the voltage across the resistor and the voltage from the source?

A.     VR leads VS by 17°
B.     VR leads VS by 73°
C.     VR lags VS by 73°
D.     VR lags VS by 17°
Answer & Explanation

Answer: Option B

Explanation:

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17.

A capacitor stores energy within a dielectric between the conducting plates in the form of:
A.     a magnetic field
B.     positive voltage
C.     negative voltage
D.     an electric field
Answer & Explanation

Answer: Option D

Explanation:

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18.

As a capacitor is being charged, the voltage across its terminals will:
A.     increase
B.     decrease
C.     remain the same
D.     oppose the source
Answer & Explanation

Answer: Option A

Explanation:

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19.

With a 500 kHz signal source, what would be the value of a capacitor yielding a capacitive reactance of 1 k omega.gif?
A.     318 pF
B.     2 nF
C.     3.18 F
D.     2 F
Answer & Explanation

Answer: Option A

Explanation:

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20.

After a capacitor has charged for 1 tc, what percentage of current remains in the resistor?
A.     63.2    B.     36.8
C.     13.5    D.     5.0
Answer & Explanation

Answer: Option B

Explanation:

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