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Capacitors

Capacitors
A 220 Ω resistor is in series with a 2.2 μF capacitor. The time constant is

24 μs
2.42 μs
480 μs
48 μs

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Capacitors
Four 0.15 μF capacitors are in parallel. The total capacitance is

0.8 μF
0.15 μF
0.30 μF
0.6 μF

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Capacitors
A 4.7 M Ω resistor is in series with a 0.015 μ F capacitor. The combination is across a 12 V source. How long does it take the capacitor to fully charge?

70.5 ms
3.5 s
352 ms
35 ms

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Capacitors
A 0.00022 F capacitor equals how many microfarads?

22,200 μF
22 μF
2,200 μF
220 μF

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Capacitors
A 0.01 F capacitor equals how many picofarads?

1,000 pF
10,000 pF
100,000 pF
100 pF

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Capacitors
Two 0.68 μ F capacitors are connected in series across a 10 kHz sine wave signal source. The total capacitive reactance is

46.8 Ω
4.68 Ω
23.41 Ω
11.7 Ω

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