Posts

Showing posts from November, 2023

working principal of capacitor

  A capacitor is a passive electronic component that stores and releases electrical energy in an electric field. It consists of two conductive plates separated by an insulating material known as a dielectric. The basic working principle of a capacitor involves the accumulation of electric charge on the plates when a voltage difference is applied across them. Here's a step-by-step explanation of how a capacitor works: 1. Charge Accumulation : When a voltage is applied across the capacitor terminals, electrons from one plate are attracted to the positive terminal of the voltage source, while electrons on the other plate are repelled by the negative terminal. Electrons accumulate on one plate, creating a negative charge, while the other plate loses electrons, resulting in a positive charge. 2. Creation of Electric Field: The voltage across the capacitor creates an electric field between the plates. The electric field causes a potential difference, which is directly proportional to the...

What is capacitor

Image
A capacitor is a two-terminal electronic component that stores electrical energy in an electric field. It consists of two conductive plates separated by an insulating material known as a dielectric. The capacitance (C) of a capacitor is a measure of its ability to store electrical charge and is defined by the equation:                                                                       CAPACITORS    where: � C is the capacitance, � Q is the stored charge, and � V is the voltage across the capacitor. � V is the voltage across the capacitor. The unit of capacitance is the farad (F). One farad is equal to one coulomb of charge stored per volt of potential difference. Capacitors are widely used in electronic circuits for various purposes, including energy storage, filtering, coupling, and timing. They c...