Handout_0_-_E40_Review

Handout_0_-_E40_Review - EE101A / Winter 10 E40 Review...

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1 EE101A / Winter 10 Handout #0 E40 Review Reference – Hambley, Chapter 1.2 - 1.7 Goal : Understand basic electrical components and the laws that govern their connections. 1. Circuit Electricity is the energy source for all electronic products. Electrical engineering is the manipulation of electricity to perform computation, communication, storage, display, sensing, actuation and other useful or entertaining functions. Electricity is described by current and voltage. 1.1 Current – Flow rate of electrical charge. The unit for current is Ampere (A) = Coulomb per second (C/s) If the charge is positive, current flows in the same direction as the charge. I dq dt (q is charge) If the charge is negative, current flows in the opposite direction of the charge. I d ( q ) dt  dq dt Each electron carries a charge of 1.6 X 10 -19 C. 1A corresponds to a flow rate of 6.25 X 10 18 electrons per second.
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2 Direct Current (DC) – constant, time invariant current. DC is generalized to describe time invariant voltage, signal, ….
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This note was uploaded on 03/30/2010 for the course EE 101A taught by Professor Wong during the Winter '08 term at Stanford.

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Handout_0_-_E40_Review - EE101A / Winter 10 E40 Review...

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