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Electronics For Dummies, 2nd Edition by Gordon McComb, Cathleen Shamieh

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Part III

Putting Theory into Practice

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In this part . . .

Understanding how electronics components control electric current is useful, but seeing this control in action is truly electronic nirvana. In this part, you find out how to set up simple circuits to demonstrate the principles of electronics. We show you how to use your multimeter — and a wee bit o’ math — to gather enough evidence to prove that electronic components really do live up to their promises. You may even make a few LEDs glow, to show where and when electric current is flowing through your test circuits.

We also share with you the plans for several fun electronics projects you can build in less than 30 minutes — without breaking open your piggy bank. Using sensors, lights, and buzzers, you can put electronics to work to create a variety of practical — and, sometimes, entertaining — circuits. You may find that these projects spark some creative ideas for other circuits you can build to impress your friends and family.

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