Understanding Diodes and Diode Symbols
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Questions and Answers

What is the main drawback of Laser Diodes compared to LEDs?

  • Inefficiency in CD drives
  • Limited light emission
  • High cost (correct)
  • Short lifespan

    • In Zener Diodes, breakdown occurs when:

  • The current exceeds a certain value
  • The voltage drop is constant (correct)
  • The forward bias is applied
  • The current is zero

    • What distinguishes Schottky Diodes from other silicon PN junction diodes?

  • Higher forward voltage
  • Lower forward voltage (correct)
  • Use in rectifier applications
  • Construction with two layers

    • What is the primary function of a diode?

    <p>Limits voltage and transforms AC into DC</p> Signup and view all the answers

    In a diode symbol, what does the arrowhead represent?

    <p>Direction of current flow in forward bias</p> Signup and view all the answers

    How do Avalanche Diodes operate?

    <p>Through the avalanche effect in reverse bias</p> Signup and view all the answers

    What is the primary function of a Photodiode?

    <p>Identifying small current flow due to light</p> Signup and view all the answers

    What happens when the anode voltage is more positive than the cathode voltage in a diode?

    <p>The diode conducts with low voltage drop</p> Signup and view all the answers

    Which materials are commonly used to make diodes?

    <p>Silicon and Germanium</p> Signup and view all the answers

    What happens to a diode when the cathode voltage is more positive than the anode voltage?

    <p>It is reverse-biased</p> Signup and view all the answers

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