Lecture30 - Chapter 6

Lecture30 - Chapter 6 - EE216 C ircuit Analysis I C to e...

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Click to edit Master subtitle style 11 EE216 Circuit Analysis I Lecture # 30 – Chapter 6
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22 Capacitance Capacitors are circuit components whose 2 terminals are conductive plates separated by a dielectric (insulating) material. Capacitance is the circuit parameter used to describe a capacitor. Capacitance is the behavior based on phenomena associated with electric fields.
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33 Capacitance Due to the insulating material between the two conductors, electric charge is not transported through the capacitor – therefore incapable of passing current . However, when a voltage is applied to the two plates, they displace charges (specifically electrons) within the dielectric material causing a displacement current flow until the plates reach maximum possible potential difference. Once this displacement is complete, no more movement of charge takes place. At the terminals the displacement current is indistinguishable from the conduction current.
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44 Capacitance Capacitor: The circuit element used to model the displacement current to the potential difference in an electric field Circuit symbol: Units: Farads Coulombs/Volts (1 Farad is a large quantity C i v Michael Faraday (1791-1867)
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55 Capacitors – I/V relationship
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This note was uploaded on 01/21/2011 for the course EE 216 taught by Professor Azharruaf during the Spring '10 term at NUCES.

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Lecture30 - Chapter 6 - EE216 C ircuit Analysis I C to e...

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