logo

CuriousTab

CuriousTab

Discussion

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

  • 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

  • Correct Answer
  • class B O/P stage 

    Explanation
    It is a characteristics of class B output stage as the amplifier is biased in cut-off region.

    In class B amplifier, two transistor are operated in such a way that one is amplify the half cycle and second is amplify -ve half cycle.

    Crossover distortion behaviour is characteristic of class A O/P stage class B O/P stage class AB out

    Electronic Devices and Circuits problems

    Search Results

    • 1. 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
    • 2. 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
    • 3. An increase in temperature increases the width of depletion layer.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. 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
    • 5. Assertion (A): The reverse saturation current in a semiconductor diode is 4nA at 20°C and 32 nA at 50°C.

      Reason (R): The reverse saturation current in a semiconductor diode doubles for every 10°C rise in temperature.


    • 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 a correct explanation of A
    • C. A is true but R is false
    • D. A is false but R is true
      • Discuss
    • 6. In which of these is reverse recovery time nearly zero?

    • Options
    • A. Zener diode
    • B. Tunnel diode
    • C. Schottky diode
    • D. PIN diode
      • Discuss
    • 7. 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
    • 8. 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
    • 9. The types of carriers in a semiconductor are

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
      • Discuss
    • 10. 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

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.