Electrical Engineering - Capacitors

Exercise :: Capacitors - General Questions

16. 

A 0.00022 F capacitor equals how many microfarads?

A. 22 F
B. 220 F
C. 2,200 F
D. 22,200 F

Answer: Option B

Explanation:

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17. 

Two series capacitors (one 2 F, the other of unknown value) are charged from a 24 V source. The 2 F capacitor is charged to 16 V and the other to 8 V. The value of the unknown capacitor is

A. 1 F
B. 2 F
C. 4 F
D. 8 F

Answer: Option C

Explanation:

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18. 

A 330 pF capacitor and a 220 pF capacitor are each connected across a 6 V dc source. The voltage across the 330 pF capacitor is

A. 3 V
B. 6 V
C. 4 V
D. 0 V

Answer: Option B

Explanation:

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19. 

A 2 F, a 4 F, and a 10 F capacitor are connected in series. The total capacitance is less than

A. 2 F
B. 4 F
C. 10 F
D. 1.5 F

Answer: Option D

Explanation:

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20. 

When the plate area of a capacitor increases,

A. the capacitance increases
B. the capacitance decreases
C. the capacitance is unaffected
D. the voltage it can withstand increases.

Answer: Option A

Explanation:

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