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Home ‣ Electronics and Communication Engineering ‣ Power Electronics See What Others Are Saying!
  • Question

  • A cycloconverter is a group of controlled rectifiers.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • More questions

    • 1. Diamond is a paramagnetic material.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. If the repeller voltage in a klystron oscillator is increased the transit time of electron

    • Options
    • A. will be increased
    • B. will be decreased
    • C. will remain the same
    • D. either (a) or (b)
      • Discuss
    • 3. India's Polar Satellite Launch vehicle (PSLV) to be ready in 1991 is designed to launch 1000 kg spacecraft into __________ orbit.

    • Options
    • A. geostationary
    • B. equatorial
    • C. polar
    • D. sun-synchronous polar
      • Discuss
    • 4. Which of the following is a balanced line?

    • Options
    • A. Coaxial line
    • B. Strip line
    • C. Microstrip line
    • D. TV twin lead
      • Discuss
    • 5. If the peak transmitted power in a radar is increased by a factor 81, the maximum range is increased by a factor of

    • Options
    • A. 3
    • B. 9
    • C. 27
    • D. 81
      • Discuss
    • 6. Recombination produces new electron-hole pairs

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. The number of protons in a silicon atom are

    • Options
    • A. 4
    • B. 8
    • C. 12
    • D. 14
      • Discuss
    • 8. Assertion (A): Relaxation time and mean time between collisions are equal when scattering is isotropic.

      Reason (R): Mean free path of an electron ?, velocity of electron v and mean time between collisions tc are related as ? = vTc.


    • Options
    • A. Both A and R are true and R is correct explanation of A
    • B. Both A and R are true but R is not correct explanation of A
    • C. A is true but R is false
    • D. A is false but R is true
      • Discuss
    • 9. A padder is basically a/an

    • Options
    • A. insulator
    • B. variable resistor
    • C. capacitor
    • D. inductor
      • Discuss
    • 10. If a system is to follow arbitrary inputs accurately the bandwidth should be

    • Options
    • A. large
    • B. small
    • C. very small
    • D. neither small nor large
      • Discuss

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