Energy is stored by a capacitor in a magnetic field.
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Electrical Engineering · all questionsCapacitors
Capacitors
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XC is inversely proportional to frequency and capacitance.
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Capacitance is directly proportional to plate area and plate separation.
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An uncharged capacitor and a 1 kΩ 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
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Total parallel capacitance is less than that of the smallest capacitor in parallel.
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A 220 Ω resistor is in series with a 2.2 µF capacitor. The time constant is
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A 4.7 MΩ resistor is in series with a 0.015 µF capacitor. The combination is across a 12 V source. How long does it take the capacitor to fully charge?
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A 10 µF, 20 µF, 22 µF, and 100 µF capacitor are in parallel. The total capacitance is
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Four 0.15 µF capacitors are in parallel. The total capacitance is
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The ohm is the unit of capacitance.
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Two series capacitors (one 2 µF, the other of unknown value) are charged from a 24 V source. The 2 µF capacitor is charged to 16 V and the other to 8 V. The value of the unknown capacitor is
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A 0.00022 F capacitor equals how many micro-farads?
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