By Darren Ashby
Written by means of a professional electronics engineer who enjoys educating the sensible facet of engineering, this e-book covers the entire topics starting EE must recognize: intuitive circuit and sign research, actual equivalents of electric elements, right use of an oscilloscope, troubleshooting either electronic and analog circuits, and masses extra! Even engineers with years within the can enjoy the compendium of sensible info supplied inside of. CONTENTS: bankruptcy zero: what's electrical energy fairly? bankruptcy 1: 3 issues they need to Have Taught in Engineering a hundred and one bankruptcy 2: uncomplicated idea bankruptcy three: items elements bankruptcy four: the true global bankruptcy five: instruments bankruptcy 6: Troubleshooting bankruptcy 7: Touchy-Feely Stuff Appendix *Covers the engineering fundamentals which were both disregarded of a customary engineer's schooling or forgotten over the years *No different publication bargains a wealth of "insider info" in a single quantity, particularly geared to aid new engineers and supply a refresher for people with extra event *updated content material all through, together with 2-color diagrams and a brand new 'Chapter zero - what's electrical energy Really?' *The accompanying CD-ROM features a reference library of electronics info, with demo simulation software program and engineering calculators
Read or Download Electrical Engineering 101, Second Edition: Everything You Should Have Learned in School...but Probably Didn't PDF
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Additional resources for Electrical Engineering 101, Second Edition: Everything You Should Have Learned in School...but Probably Didn't
Example text
We will also consider the effects from an aggregate level, preserving the idea of flow. Now that you know the dirty little secret of electron flow, let’s talk about current and voltage and where they come from. 18 When you have an evening with nothing better to do, I suggest you Google this topic; it is very interesting. 19 Ahh, quantum mechanics, an interesting and entirely other topic that we will have to reserve for another book at another time. 20 Don’t let that stop you from wondering, though; maybe you will discover something new!
The Voltage Divider Rule Next on our list of basic formulae is the voltage divider rule. 5 shows a schematic of the circuit: Vo ϭ Vi Rg Rg ϩ Ri Eq. 5 Input voltage is divided down at the output. The most common way you will see this is in terms of R1 and R2. I have changed these to Rg (for R ground) and Ri (for R input) to remind myself which one of these goes to ground and which one is in series. If you get them backward, you get the amount of voltage lost across Ri, not the amount at the output (which is the voltage across Rg).
23 Alternating Current AC or alternating current came about as the interaction of magnets and electricity were discovered. In an AC circuit, the current repetitively changes direction every so often. That means current increases in flow to a peak, then decreases to zero current flow, then increases in flow in the opposite direction to a peak, then back to zero, and the whole process repeats. The current alternates the direction of flow in a sinusoidal fashion, so of course it is called alternating current.