# No-Nonsense, General Class License Study Guide (Print Version)

The No-Nonsense General Class License Study Guide is the quickest way to upgrade from Tech to General.  It clearly and succinctly explains the concepts, while at the same time, give you the answers to all of the questions that you’ll find on the test.

Here’s an example:

Reactance is opposition to the flow of alternating current caused by capacitance or inductance. (G5A02) We use the letter X to stand for reactance. Reactance causes opposition to the flow of alternating current in an inductor. (G5A03) Reactance causes opposition to the flow of alternating current in a capacitor. (G5A04)

The reactance caused by a capacitor or inductor depends on the frequency of the AC source. You calculate the reactance caused by an inductor with this equation:

XL = 2?fL

where XL is the inductive reactance, f is the frequency of the AC source, and L is the inductance in henries. As the frequency of the applied AC increases, the reactance of an inductor increases. (G5A05)

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