Lecture Notes 9_Reactive

# D v a q where a is the area of the plates d is their

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Unformatted text preview: alancing negative charge will be present on the lower plate. There will be a potential energy difference (or voltage v ) between the plates proportional to q . d v = A q where A is the area of the plates, d is their separation and is the permittivity of the insulating layer ( 0 = 8.85 pF/m for a vacuum). The quantity C = A is the capacitance and is measured in Farads (F), d hence q = Cv . The current, i, is the rate of charge ﬂow, hence the dq capacitor equation: i = qt = C dv . dt E1.1 Analysis of Circuits (2013-3717) Capacitors and Inductors: 9 – 2 / 12 Types of Capacitor 9: Capacitors and Inductors • Capacitors • Types of Capacitor • Inductors • Passive Components • Series and Parallel Capacitor symbol represents the two separated plates. Capacitor types are distinguished by the material used as the insulator. Inductors • Series and Parallel Capacitors • Current/Voltage Continuity • Average Current/Voltage • Buck Converter • Power and Energy • Summary E1.1 Analysis of Circuits (2013-3717) Capacitors and Inductors: 9 – 3 / 12 Types of Capacitor 9: Capacitors and Inductors • Capacitors • Types of Capacitor • Inductors • Passive Components • Series an...
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