Chapter 1 - Basic Concepts Chapter 1 Click to edit Master...

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Click to edit Master subtitle style 2/17/11 Basic Concepts Chapter 1
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2/17/11 Learning Objectives Charge Current and Voltage Energy and Power Ideal basic circuit element Passive sign convention
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2/17/11 Charge Fundamental electric quantity Unit: Coulomb (C) Charge of an electron: qe = -1.602 x 10-19 C Charge of a proton: -qe = +1.602 x 10-19 C It takes many, many electrons to produce a meaningful amount of electric current.
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2/17/11 Charge is conserved. This is based on conservation of matter . Electrons and protons are neither be created nor destroyed in an electric circuit. They can only be transferred.
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2/17/11 Current Current (i) is the rate at which charge is passing through an area i = q/ t where i = the current in Amperes q = the charge in Coulombs t = the time in seconds 1 Ampere = 1 Coulomb/second
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Current is a Signed Quantity In electrical engineering, the positive direction of current flow is that of positive charges. Current
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This note was uploaded on 02/17/2011 for the course EE 302 taught by Professor Mccann during the Fall '06 term at University of Texas.

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Chapter 1 - Basic Concepts Chapter 1 Click to edit Master...

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