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

AM.I.A.S4

Skill

Measure resistance.

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Study note

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.

From the FAA library

Aviation Maintenance Technician Handbook - Airframe p. 10-35
Chapter 10: Aircraft Systems › Electrical Temperature Measuring Indication › Electrical Resistance Thermometer
fluid or area in which temperature needs to be measured. It is connected by wires to a resistance measuring device inside the flight deck indicator. The instrument dial is calibrated in degrees Fahrenheit or Celsius as desired rather than ... ohms. As the temperature to be measured changes, the resistance of the metal changes and the resistance measuring indicator shows to what extent…
Aviation Maintenance Technician Handbook - General p. 12-72
Chapter 12: Fundamentals of Electricity & Electronics › The Ohmmeter › The Multirange Ohmmeter
pointer is set on the scale and the range switch is set at R × 100, the actual resistance measurement is 20 × 100 or 2k Ω. To measure small resistance values, the technician must use a higher ohmmeter current than ... circuit testing of electrical power systems. The chief advantage of the megger over an ohmmeter is its capacity to measure resistance with a high potential, or “breakdown” voltage. This type of testing ensures that insulation or a dielectric material will…
Aviation Maintenance Technician Handbook - General p. 12-69
Chapter 12: Fundamentals of Electricity & Electronics › DC Measuring Instruments › Current Sensitivity and Resistance
Figure 12-148. Autotransformers. In a standard d’Arsonval meter, movement may…
Aviation Maintenance Technician Handbook - General p. 12-21
Chapter 12: Fundamentals of Electricity & Electronics › Power and Energy › Power Formulas Used in the Study of Electricity
Suppose 300 joules of energy is consumed in 10 seconds. What would…
Aviation Maintenance Technician Handbook - General p. 12-80
Chapter 12: Fundamentals of Electricity & Electronics › Basic Circuit Analysis & Troubleshooting › Checking Resistance in a Circuit
Current Measurement Current is measured with the ammeter connected in the current…