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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
480 μs
48 μs
2.42 μs

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Capacitors
An uncharged capacitor and a 1 k Ω resistor are connected in series with a switch and a 6 V battery. At the instant the switch is closed, the voltage across the capacitor is

2 V
6 V
3 V
0 V

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

4 μ F
10 μ F
2 μ F
1.5 μ F

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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?

3.5 s
352 ms
70.5 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 capacitor of 0.02 μF is larger than

0.000020 F
All of these
2,000 pF
200,000 pF

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