Capacitor Advantages And Disadvantages
Definition: Capacitor is a device an object or surface to store electrical energy and also is returns energy when is required. Metal plates Insulator material Negative charge Positive charge Capacitor construction and operation: A capacitor has two metal plates with their insulator material between them. The insulator material is called a dielectric material. The dielectric constant on their relative strength against the material to flow electrical current. The insulating properties are better when number is high. Material Dielectric constant Vacuum 1.0 Air 1.00059 Polystyrene 2.5 Paper 3.5 Mica 5.4 Pure water 81 Glycerine 56.2 Definition of dielectric material: A simple capacitor made by two metallic …show more content…
All capacitor have their own advantages and disadvantages then easily choose which capacitor is better to use. Now see types of capacitor and their advantages and disadvantages listed …show more content…
A measure easily in dielectric will “permit” of flux lines within dielectric. Symbolε. Relative permittivity: Relative permittivity is called the dielectric constant; permittivity is ratio of any dielectric to that of a vacuums. Charging and discharging of capacitor: While connecting a capacitor on a circuit with direct current (DC) source, two processes we called them “Charging and Discharging capacitor”, will happen in specific condition. Capacitors connect by DC power supply and current flows in the circuit while doing charging and discharging. While capacitor was charging both metallic plates and opposites charge and also increase their potential difference. When capacitor was fully charge means equal to their DC power supply voltages and then current was stop flowing through the circuit, phase charging was done. Figure 1: Charging of capacitors Equivalent to a direct current on an open circuit because when a charging was finished, no more current flow through the circuit. While discharging a capacitor to its circuit we have to disconnect DC power supply through the resistor and voltages between the plates drop down upto
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259 Words | 2 PagesTypical sample dimensions 9.51 × 4.83 mm2in surface area and1.58 mm in thickness were coated with conductive silver paint formetallic contacts. The dielectric constant of the sample was mea-sured for the applied frequency that varies from 100 Hz to 1 MHz atdifferent temperatures (40◦C, 60◦C, 80◦C). The observations weremade while cooling the sample. The dielectric constant εrwas cal-culated using the relation, εr =
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