AM.I.A.S2

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• Aviation Maintenance Technician Handbook - Generalp. 12-79
  Chapter 12: Fundamentals of Electricity & Electronics › Basic Circuit Analysis & Troubleshooting › Voltage Measurement

  does not have an open. • Discontinuity—the opposite of continuity, indicating that a circuit is broken or not continuous. Voltage Measurement Voltage is measured across a component with a voltmeter or the voltmeter position on a multimeter. Usually, there ... prevents the meter from “pegging” and possible damage. The range should then be selected to low values until the measured voltage is read at the mid-scale deflection. Readings taken at mid-scale are the most accurate…

• Aviation Maintenance Technician Handbook - Generalp. 12-50
  Chapter 12: Fundamentals of Electricity & Electronics › Capacitance › Units of Capacitance

  Units of Capacitance Electrical charge, which is symbolized by the letter Q, is measured in units of coulombs. The coulomb is given by the letter C, as with capacitance. Unfortunately, this can be confusing. One coulomb of charge is defined ... Figure 12-113. Sine wave effective value. Where C = E Q C = capacitance measured in farads E = applied voltage measured in volts Q = charge measured in coulombs In practical terms, one farad is a large amount of capacitance. Typically…

• Aviation Maintenance Technician Handbook - Generalp. 12-71
  Chapter 12: Fundamentals of Electricity & Electronics › The Ohmmeter

  Circuit Connections When voltmeters are used, they are connected in parallel with a circuit. If unsure about the voltage to be measured, take the first reading at the high value on the meter and then progressively move down through ... amount of current. This lowers the effective resistance of the circuit and change the voltage readings. When making a voltage measurement, use a high resistance voltmeter to prevent shunting of the circuit. Figure 12-151. Ammeter with two ranges…