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AC Resistor Circuits
Pure resistive AC circuit: resistor voltage and current are in phase. If we were to plot the current and voltage for a very simple AC circuit consisting of a source and a resistor (Figure above), it...
View ArticleAC Inductor Circuits
Inductors do not behave the same as resistors. Whereas resistors simply oppose the flow of electrons through them (by dropping a voltage directly proportional to the current), inductors oppose changes...
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Series Resistor-Inductor Circuits
In the previous section, we explored what would happen in simple resistor-only and inductor-only AC circuits. Now we will mix the two components together in series form and investigate the effects....
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Parallel Resistor-Inductor Circuits
Let's take the same components for our series example circuit and connect them in parallel: (Figure below) Parallel R-L circuit. Because the power source has the same frequency as the series example...
View ArticleInductor Quirks
In an ideal case, an inductor acts as a purely reactive device. That is, its opposition to AC current is strictly based on inductive reaction to changes in current, and not electron friction as is the...
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More on the "skin effect"
As previously mentioned, the skin effect is where alternating current tends to avoid travel through the center of a solid conductor, limiting itself to conduction near the surface. This effectively...
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