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Electric Circuits 8th Edition 27

Electric Circuits 8th Edition 27 - A n0 verview 1.1 E...

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1.1 Etectrical Engineering: An Overview Electrical engineeringis the profession concetned with systems that oroduce. transmit, anal measureelectric signals. Elect cal engineeing ;ombines the pbysicist's models of natural phenomena ith the mathe- matician's tools lor manipulating those modelsto produce systems that meet practical needs. Electiical systems pervade our lives;they are found ir homes, schools, workplaces, and transportation vehicles everywhere We beginby presenting a few examples from each ofthe five major clas- sifications of electrical systems: . commu catlon syslems ' computel systems t control systems . power sysEms . signal-processing systems Then we describe how electrical engineers anallze and design suchsystems Conrmunication systems are electrical systems that generate' trans- mit. and distribute information. Well-known examples include television equipment, such as cameras, transmitters, receivers, and VCRS; radio tele- scopes, used to explore the univeise; satellite systems, which return images
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