Capacitors are used in electrical circuits where appliances need rapid:-
A
Current
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B
Voltage
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C
Watt
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D
Resistance
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Solution
The correct option is A Current In a way, a capacitor is a little like a battery. Although they work in completely different ways, capacitors and batteries both store electrical energy. A capacitor is much simpler than a battery, as it can't produce new electrons -- it only stores them. Once it's charged, the capacitor has the same voltage as the battery (1.5 volts on the battery means 1.5 volts on the capacitor).
Even nature shows the capacitor at work in the form of lightning. One plate is the cloud, the other plate is the ground and the lightning is the charge releasing between these two "plates." Thus, you can see the rapidity with which a capacitor provides current.