logo

CuriousTab

CuriousTab

Discussion

Home ‣ Electronics and Communication Engineering ‣ Electronic Devices and Circuits Comments
  • Question

  • In which of these is reverse recovery time nearly zero?


  • Options
  • A. Zener diode
  • B. Tunnel diode
  • C. Schottky diode
  • D. PIN diode

  • Correct Answer
  • Schottky diode 

    Explanation
    In schottky diode there is no charge storage and hence almost zero reverse recovery time.

    Electronic Devices and Circuits problems

    Search Results

    • 1. Crossover distortion behaviour is characteristic of

    • Options
    • A. class A O/P stage
    • B. class B O/P stage
    • C. class AB output stage
    • D. common pulse O/P state
      • Discuss
    • 2. Work function is the maximum energy required by the fastest electron at 0 K to escape from the metal surface.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. An amplifier without feedback has a voltage gain of 50, input resistance of 1 k? and output resistance of 2.5 k?. The input resistance of the current shunt -ve feedback amplifier using the above amplifier with a feedback factor of 0.2 is

    • Options
    • A. 1/11 k?
    • B. 1/5 k?
    • C. 5 kW
    • D. 11 kW
      • Discuss
    • 4. An increase in temperature increases the width of depletion layer.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. Calculate the stability factor and change in IC from 25°C to 100°C for, ? = 50, RB/ RE = 250, ?IC0 = 19.9 nA for emitter bias configuration.

    • Options
    • A. 42.53, 0.85 ?A
    • B. 40.91, 0.58 ?A
    • C. 40.91, 0.58 ?A
    • D. 41.10, 0.39 ?A
      • Discuss
    • 6. The v-i characteristics of a FET is shown in figure. In which region is the device biased for small signal amplification

    • Options
    • A. AB
    • B. BC
    • C. CD
    • D. BD
      • Discuss
    • 7. In which region of a CE bipolar transistor is collector current almost constant?

    • Options
    • A. Saturation region
    • B. Active region
    • C. Breakdown region
    • D. Both saturation and active region
      • Discuss
    • 8. The types of carriers in a semiconductor are

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
      • Discuss
    • 9. When a voltage is applied to a semiconductor crystal then the free electrons will flow.

    • Options
    • A. towards positive terminal
    • B. towards negative terminal
    • C. either towards positive terminal or negative terminal
    • D. towards positive terminal for 1 ?s and towards negative terminal for next 1 ?s
      • Discuss
    • 10. In a bipolar transistor the barrier potential

    • Options
    • A. 0
    • B. a total of 0.7 V
    • C. 0.7 V across each depletion layer
    • D. 0.35 V
      • Discuss

    Comments

    Avatar
    Stevlate
    Discount Levaquin Medication In Canada Cheapeast AustinBuy Amoxicillin Liquid No Prescription Preise Cialis Angebote
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.