Practice of Capacitors

Practice of Capacitors

Practice of Capacitors

06/25/16

“How can we apply capacitors to accomplish practical tasks?”

Capacitors have many uses in application. The most common utilization for capacitors is to store energy. Energy can be stored within the electric field of a capacitor, and this energy can continue being stored even if the battery has been disconnected! Capacitors also have a very quick discharge time (often only in the milliseconds) so they can serve as a quick battery. Capacitors can also be used a sensors, accomplishing tasks such as measuring the fuel levels in an airplane. However, one of the most powerful uses of a capacitor is to be a low pass filter. Since the resistance of capacitors in an AC circuit increases inversely proportionally to the frequency of an object, a low frequency current will be hampered by the filter, which means that a minimum threshold of frequency must pass through.

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