Circuitos em Eletronica: Importante Paper Explicativo


ler este paper/e-book elucidativo. Por exemplo, veja texto abaixo:

Chapter 12: Basic Electronics


Voltage is the key to understanding electronics. Without voltage, nothing happens in electronics. What is it? Nobody knows. We know how to generate it. We know what it does. We know how to measure it, but nobody knows what it actually is. It is also called “Electro Motive Force” or “EMF” which is no help whatsoever in knowing what it is. That, is roughly equivalent to saying “the thing that pushes is the thing that pushes” – very true but absolutely no help whatsoever. OK, having admitted that we really don’t know what it is, we can start to say the things we do know about it:

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