Title: The capacitor, its characteristics and its applications in a discharge circuit
Abstract: This chapter discusses the capacitor, its characteristics, and its applications in discharge circuits. The electrical capacitor is the most important storage reservoir for electrical energy that would subsequently be discharged at a high rate into the consumer circuit to produce a quick flow of energy. The weight and cost of the power packs are mainly because of the capacitors. Capacitors consist of metallic plates, or foils, with an insulating material called a dielectric among them. Paper saturated with oil is commonly used as a dielectric material, while other capacitors use a thin layer of plastic. When a voltage is applied to the capacitor plates, electrical charges flow to the plates, and the dielectric is subjected to an electrostatic field. Electrical energy is required to charge the capacitor to a given voltage according to the important relationship where E is the voltage across terminals in volts, and C the capacitance in farads. The capacitance C is a number indicating the ability of a capacitor to store electrical charge per volt of applied voltage. A capacitor with a large capacitance would store more energy than one with a smaller capacitance at the same voltage.
Publication Year: 1965
Publication Date: 1965-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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