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  • Question

  • Assertion (A): A GTO circuit is more compact than SCR circuit

    Reason (R): A GTO can be turned off by negative gate pulse.


  • Options
  • A. Both A and R are correct and R is correct explanation of A
  • B. Both A and R correct but R is not correct explanation of A
  • C. A is correct but R is wrong
  • D. A is wrong but R is correct

  • Correct Answer
  • Both A and R are correct and R is correct explanation of A 

    Explanation
    Since commutation circuit is not required, GTO circuit is compact.

    More questions

    • 1. If ZTE is wave impedance for TE waves, Ed is maximum dielectric strength of insulating material, a and b are the width and height of a rectangular wave guide, the maximum power handling capability Pmax for TE10 mode is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 2. Neutralization is used in RF amplifiers to

    • Options
    • A. stop oscillation
    • B. increase bandwidth
    • C. improve selectivity
    • D. all of the above
      • Discuss
    • 3. As wavelength decrease the size of high directivity antenna

    • Options
    • A. decreases
    • B. increases
    • C. is not affected
    • D. either (b) or (c)
      • Discuss
    • 4. In a circuit using a full wave converter (M - 2 connection) the PIV of each thyristor is 400 V. For the same output voltage and fully controlled bridge converter, PIV will be

    • Options
    • A. 400 V
    • B. 800 V
    • C. 200 V
    • D. 2002 V
      • Discuss
    • 5. In a BCD to 7 segment decoder the minimum and maximum number of outputs active at any time is

    • Options
    • A. 2 and 7
    • B. 3 and 7
    • C. 1 and 6
    • D. 3 and 6
      • Discuss
    • 6. A chopper

    • Options
    • A. converts constant voltage dc into ac and then into variable voltage dc
    • B. converts constant voltage dc into variable voltage dc directly
    • C. converts ac of one frequency into ac of another frequency
    • D. converts ac to dc
      • Discuss
    • 7. The value of capacitor C for dynamic equalising circuit of series connected thyristors is determined by

    • Options
    • A. forward characteristics of thyristors
    • B. reverse recovery characteristics of thyristors
    • C. both forward and reverse recovery characteristics of thyristors
    • D. none of the above
      • Discuss
    • 8. If load impedance ZL >> Z0, then

    • Options
    • A. Z0 = ZL (VSWR)
    • B. ZL = Z0 (VSWR)
    • C. ZL = Z0 (VSWR - 1)
    • D. ZL = Z0 VSWR
      • Discuss
    • 9. A cycloconverter can be

    • Options
    • A. step down
    • B. step up
    • C. step down or step up
    • D. none of the above
      • Discuss
    • 10. Suppose that the modulating signal is m(t) = 2cos (2pfmt) and the carrier signal is xC(t) = AC cos(2pfct), which one of the following is a conventional AM signal without over modulation?

    • Options
    • A. x(t) = Acm(t)cos(2pfct)
    • B. x(t) = Ac [1 + m(t)]cos (2pfct)
    • C.
    • D. x(t) = Accos(2pfmt)cos(2pfct) + Acsin(2pfmt)sin(2pfct)
      • Discuss

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