What are capacitors in electronics? Capacitor, device for storing electrical energy, consists of two conductors in close proximity and insulated from each other. A simple example of such a storage device is the parallel-plate capacitor. Capacitors have many important applications. It is a basic storage device to store electrical charges and release it as it is required by the circuit. These are widely used in electronic circuits to perform variety of tasks, such as smoothing, filtering, bypassing etc. One type of capacitor may not be suitable for all applications. We measure capacitance in farads, which is the capacitance that stores one coulomb (defined as the amount of charge transported by one ampere in one second) of charge per one volt. Capacitors are widely used in electronic circuits for blocking direct current while allowing alternating current to pass. In analog filter networks, they smooth the output of power supplies.

Payal Jain

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