logo

CuriousTab

CuriousTab

Discussion

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

  • In figure The minimum and maximum load currents are
    In figure The minimum and maximum load currents are 0 and 60 mA 0 and 120 mA 10 mA and 60 mA 10 mA a


  • Options
  • A. 0 and 60 mA
  • B. 0 and 120 mA
  • C. 10 mA and 60 mA
  • D. 10 mA and 120 mA

  • Correct Answer
  • 0 and 120 mA 

    Explanation
    When RL = ?, IL = 0,

    When RL = 100 ?, In figure The minimum and maximum load currents are 0 and 60 mA 0 and 120 mA 10 mA and 60 mA 10 mA a or 120 mA.

    More questions

    • 1. In 8 cavity magnetron the p mode corresponds to a total phase shift equal to

    • Options
    • A. ± 8 p radians around the periphery
    • B. ± 4 p radians around the periphery
    • C. ± 2 p radians around the periphery
    • D. ± 16 p radians around the periphery
      • Discuss
    • 2. Match the following:

      List I (DOS commands) List II (Meaning)
      A. DBLSPACE 1. Deletes a director and its sub-directories
      B. MEM 2. Displays the amount of used and free memory
      C. SYS 3. Put a copy of DOS on disk
      D. DELTREE 4. Compresses files to increase the storage capacity of disc


    • Options
    • A. A-4, B-3, C-2, D-1
    • B. A-2, B-3, C-4, D-1
    • C. A-4, B-2, C-3, D-1
    • D. A-1, B-2, C-3, D-4
      • Discuss
    • 3. In a 3 phase fully controlled converter the firing frequency is

    • Options
    • A. 3 times the line frequency
    • B. 6 times the line frequency
    • C. 9 times the line frequency
    • D. 12 times the line frequency
      • Discuss
    • 4. Assertion (A): The output voltage of an inverter can be controlled by PWM technique

      Reason (R): In a current source inverter the input current is constant.


    • 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
    • 5. Assertion (A): Doping level in extrinsic semiconductors is very small.

      Reason (R): Additional of impurity in the ratio of 1 part in 108 parts increases the number of charge carriers by about 20.


    • 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
    • 6. Which part of radio spectrum is more crowded?

    • Options
    • A. Lower frequency part
    • B. Higher frequency part
    • C. Both (a) and (b)
    • D. None of these
      • Discuss
    • 7. For satellite transmission, analog signals may be converted into digital form with the help of

    • Options
    • A. modem
    • B. transponder
    • C. codec
    • D. compandor
      • Discuss
    • 8. Assertion (A): Bolometer is frequently used in microwave power measurement.

      Reason (R): In a bolometer the input microwave power causes a change in resistance.


    • Options
    • A. Both A and R are correct and R is correct explanation of A
    • B. Both A and R are 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
    • 9. Assertion (A): An ideal rectifier should have unity harmonic factor

      Reason (R): An ideal rectifier should have unity displacement factor.


    • 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
    • 10. Assertion (A): Power transistor has lower switching time than SCR

      Reason (R): Power transistor has greater switching time than SCR


    • 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

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.