CET Associate Certified Electronics Technician CIE book Questions and Answers 100% Pass
CET Associate Certified Electronics Technician CIE book Questions and Answers 100% Pass Three Colors for a 10 ohm resistor Brown Black Brown Three Colors for 4.7 ohm resistor Yellow Violet Gold Two Terminal current control circuit device rheostat 12 Volt battery across red red red resistor, mW dissipated by resistor .65.5 mW Resistance Equivalency formula R1 x R2/R1+R2 The larger the capacitor, the smaller/larger the voltage drop smaller Most common use of capacitors is to store ___________ energy When plates of a series -resonant tuning circuit are moved closer together, the resonant frequency of the turned circuit increase/decrease decrease. Moving plates closer together increases capacitance which decreases the resonant frequency fc= 1/2π√LC True or False, the purpose of a 0.01 μF capacitor in parallel with a filter capacitor is to increase the capacitance False, it is to offer a low reactance path to high frequency transients A 0.05 μF capacitor is connected in series with a 0.08 μF capacitor. The series circuit has a capacitance of .05x.08/.05+.08 μF = .031 μF Inductors store energy in the form of a ___________ field electromagnetic field To prevent electrostatic coupling between the primary and secondary windings, power transformers are sometimes equipped with a ____________ shield Faraday shield The dot notation on a transformer tells which points are (in phase)(equal to current) in phase Name two types of transformers that can be used as preregulators ferroresonant and self saturating A certain power transistor has a relay coil in its collector circuit. Name two components that can be used to protect the transistor from inductor kickback diode, voltage-dependent resistor which has a high resistance when voltage is low and low resistance when voltage is high, creating a low resistance shunt for dissipating high countervoltage from the inductor. The small inductor sometimes used in video circuits to improve high frequency response is called a ___________ coil peaking coil According to Kirchoff's voltage law,
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- Subido en
- 9 de marzo de 2024
- Número de páginas
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- Escrito en
- 2023/2024
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- Examen
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