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Copyright 2001, Regents of University of CaliforniaEECS 42 Intro. electronics for CS Fall 2001 Lecture 2: 8/29/01 A.R. NeureutherVersion Date 9/10/01Lecture 2: August 29th, 2001Electrical QuantitiesA )CurrentB) VoltageC) PowerReading: Schwarz and Oldham 1.1Copyright 2001, Regents of University of CaliforniaEECS 42 Intro. electronics for CS Fall 2001 Lecture 2: 8/29/01 A.R. NeureutherVersion Date 9/10/01Summary• Charge on an electron is – 1.6 10-19Coulombs• Current is charge per unit time = (charge per particle) x (number of particles in motion) x (velocity)• Current flows in a closed loop• Voltage is the potential energy per unit charge• Labeling convention VAB= VA– VB• One node can be chosen as a reference with voltage of zero • Energy is EAB= VAQ – VBQ = VABQ where Q is the charge• Power is the time rate of change of energy• Resistance is voltage divided by


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Berkeley ELENG 42 - Lecture Notes

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