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Home Electronics and Communication Engineering Materials and Components See What Others Are Saying!
  • Question
  • Rochelle salt is a ferroelectric material.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 


  • More questions

    • 1. The noise temperature of sky is about __________ °K.

    • Options
    • A. 100
    • B. 273
    • C. 0
    • D. 30
    • Discuss
    • 2. Assertion (A): A GTO can be turned on and turned off by gate pulses

      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
    • Discuss
    • 3. Eddy current loss is

    • Options
    • A. proportional to frequency
    • B. independent of frequency
    • C. proportional to (frequency)2
    • D. proportional to (frequency)3
    • Discuss
    • 4. In a flash type ADC, employing 15 comparators resolution with 10 volts reference; is expected to be :

    • Options
    • A. 0.625 V
    • B. 0.656 V
    • C. 0.525 V
    • D. insufficient data
    • Discuss
    • 5. As compared to the number of network elements in Brune synthesis, the number of network elements Bott-and Duffin in realization is

    • Options
    • A. more
    • B. less
    • C. equal
    • D. any of the above
    • Discuss
    • 6. At room temperature, the current in intrinsic semiconductor is due to

    • Options
    • A. holes
    • B. electrons
    • C. ions
    • D. holes and electrons
    • Discuss
    • 7. Which of the following oscillator is generally not used at VHF?

    • Options
    • A. Colpitts oscillator
    • B. Clapp oscillator
    • C. Armstrong oscillator
    • D. Ultra Audio oscillator
    • Discuss
    • 8. In the given figure forward voltage wave has a magnitude

    • Options
    • A. 90 V
    • B. 60 V
    • C. 30 V
    • D. 10 V
    • Discuss
    • 9. During forward blocking state of SCR, the voltage and current respectively are

    • Options
    • A. high and high
    • B. low and low
    • C. high and low
    • D. low and high
    • Discuss
    • 10. Match the following:

      List I List II
      A. CTFS 1. Periodic
      B. DTFS 2. Non-periodic
      C. CTFT
      D. DTFT


    • Options
    • A. A-2, B-1, C-2, D-2
    • B. A-2, B-1, C-2, D-1
    • C. A-1, B-2, C-2, D-2
    • D. A-1, B-2, C-2, D-1
    • Discuss


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