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Home ‣ Electronics ‣ Thyristors and Tranducers See What Others Are Saying!
  • Question

  • The silicon-controlled rectifier (SCR) is a three-layer device consisting of a gate, an anode, and a cathode.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 

    Explanation
    A silicon-controlled rectifier (or semiconductor-controlled rectifier) is a four-layer solid state device that controls current. The name "silicon controlled rectifier" or SCR is General Electric's trade name for a type of thyristor. The SCR was developed by a team of power engineers led by Gordon Hall and commercialized by Frank W. "Bill" Gutzwiller in 1957.

    • More questions

    • 1. Clampers are often called peak detectors.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. A transformer that has 700 turns in the primary and 35 turns in the secondary has a turns ratio of 20:1.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. The operands in an addition operation consist of the augend and the addend.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. In a BJT, the collector current is approximately equal to the base current.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. A sine wave has:

    • Options
    • A. four quadrants
    • B. two alternations
    • C. one period
    • D. all of the above
      • Discuss
    • 6. The greater the selectivity, the wider the bandwidth.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. The unit of magnetic flux density is the weber.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. PROMs are volatile.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. A monostable multivibrator must be triggered.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. Generally, increasing the resistance in a circuit will decrease the current.

    • Options
    • A. True
    • B. False
      • Discuss

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