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# Electrical Engineering - Capacitors

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### Exercise

"It takes a very long time to become young."
- Pablo Picasso
1.

A 10 F, 20 F, 22 F, and 100 F capacitor are in parallel. The total capacitance is

 A. 2.43 F B. 4.86 F C. 100 F D. 152 F

2.

A capacitor and a resistor are connected in series to a sine wave generator. The frequency is set so that the capacitive reactance is equal to the resistance and, thus, an equal amount of voltage appears across each component. If the frequency is increased

 A. VR > VC B. VC > VR C. VR = VC D. VR and VC = 0

3.

A capacitor of 0.02 F is larger than

 A. 0.000020 F B. 200,000 pF C. 2,000 pF D. all of the above

4.

In Question 6, the capacitor will reach full charge in a time equal to approximately

 A. 6 RC B. 5 RC C. RC D. none of the above

5.

What is the capacitance when Q = 60 C and V = 12 V?

 A. 720 F B. 5 F C. 50 F D. 12 F