Aviation Mechanic - General, Airframe, and Powerplant › I. General › Task A. Fundamentals of Electricity and Electronics

AM.I.A.K11a

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Resistance.

Impedance

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Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

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Aviation Maintenance Technician Handbook - General p. 12-60
Chapter 12: Fundamentals of Electricity & Electronics › AC Circuits › Series AC Circuits
inductive element is a coil with an inductance of 0.021 henry. What is the value of the impedance and the current through the lamp and the coil? Solution: First, the inductive reactance of the coil is computed ... ohms inductive reactance Next, the total impedance is computed: Z = 100 Z = 10 ohms impedance Then the current flow, I = E Z I = 11 amperes current Figure 12-130. AC circuit containing inductance. Figure 12-131. Inductances in series…
Aviation Maintenance Technician Handbook - Airframe p. 9-14
Chapter 9: Aircraft Electrical System › Opposition to Current Flow of AC › Impedance
Impedance The total opposition to current flow in an AC circuit is known as impedance and is represented by the letter Z. The combined effects of resistance, inductive reactance, and capacitive reactance make up impedance (the total opposition to current ... calculate voltage and current in AC circuits, the effect of inductance and capacitance along with resistance must be considered. Impedance is measured in ohms. Figure 9-22. Ohm's Law applies to AC circuit only when circuit consists of resistance…
Aviation Maintenance Technician Handbook - General p. 12-62
Chapter 12: Fundamentals of Electricity & Electronics › AC Circuits › Parallel AC Circuits
Figure 12-134. Impedance triangle. Figure 12-135. A circuit containing resistance…