Rectifiers and Inverters Quiz
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Questions and Answers

What is the main function of a rectifier?

  • Converting DC to AC
  • Regulating DC current
  • Converting AC to DC (correct)
  • Generating AC current

    • Which physical forms can rectifiers take?

  • Crystal radios, motor-generator sets, silicon-controlled rectifiers
  • Vacuum tube diodes, wet chemical cells, semiconductor diodes (correct)
  • Mercury-arc valves, stacks of copper and selenium oxide plates, synchronous electromechanical switches
  • Crystal detectors, high-voltage direct current, radio receivers

    • What is the reverse operation of a rectifier called?

  • Converter
  • Inverter (correct)
  • Transformer
  • Amplifier

    • Which material was used in early radio receivers as a point-contact rectifier?

    <p>Galena (lead sulfide)</p> Signup and view all the answers

    Where are rectifiers often found serving as components?

    <p>DC power supplies and high-voltage direct current</p> Signup and view all the answers

    What is the main function of a rectifier?

    <p>Converting AC to DC</p> Signup and view all the answers

    Which physical forms can rectifiers take?

    <p>Vacuum tube diodes</p> Signup and view all the answers

    What were early radio receivers called that used a 'cat's whisker' of fine wire pressing on a crystal of galena as a point-contact rectifier?

    <p>Crystal radios</p> Signup and view all the answers

    What is the reverse operation of a rectifier called?

    <p>Inverter</p> Signup and view all the answers

    Where are rectifiers often found serving as components?

    <p>DC power supplies</p> Signup and view all the answers

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