Electronics - Capacitors

Exercise :: Capacitors - General Questions

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: 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: 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: 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: 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: Option B

Explanation:

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