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[ pdf ] Fundamentals of Electrical Engineering I

Fundamentals of Electrical Engineering I Download
Topic under  Electrical Systems
Source: florida.theorangegrove.org 
File size: 2.37 MB
File type: pdf
Last download on: Thu Apr 12, 2018 05:03:17 AM
Short Desciption:
Fundamentals of Electrical Engineering I By: Don Johnson, From its beginnings in the late nineteenth century, electrical engineering has blossomed from focusing on electrical circuits for power, telegraphy and telephony to focusing on a much broader range of disciplines. However, the underlying themes are relevant today: Power creation and transmission and information have been the underlying themes of electrical engineering for a century and a half. This course concentrates on the latter theme: the representation, manipulation, transmission, and reception of information by electrical means. This course describes what information is, how engineers quantify information, and how electrical signals represent information.

The conversion of information-bearing signals from one energy form into another is known as energy conversion or transduction. All conversion systems are inecient since some input energy is lost as heat, but this loss does not necessarily mean that the conveyed information is lost. Conceptually we could use any form of energy to represent information, but electric signals are uniquely well-suited for information representation, transmission (signals can be broadcast from antennas or sent through wires), and manipulation (circuits can be built to reduce noise and computers can be used to modify information). Thus, we will be concerned with how to represent all forms of information with electrical signals, encode information as voltages, currents, and electromagnetic waves, manipulate information-bearing electric signals with circuits and computers, and receive electric signals and convert the information expressed by electric signals back into a useful form.
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