logo

CuriousTab

CuriousTab

Discussion

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

  • Which TM mode in rectangular waveguide has lowest cutoff frequency?


  • Options
  • A. TM11
  • B. TM01
  • C. TM10
  • D. TM21

  • Correct Answer
  • TM11 

    Explanation
    Hz = 0

    Which TM mode in rectangular waveguide has lowest cutoff frequency? TM11 TM01 TM10 TM21 Hz = 0 Ex =

    Which TM mode in rectangular waveguide has lowest cutoff frequency? TM11 TM01 TM10 TM21 Hz = 0 Ex =

    Which TM mode in rectangular waveguide has lowest cutoff frequency? TM11 TM01 TM10 TM21 Hz = 0 Ex =

    Ex = ± ZTM Hy

    Ey = ± ZTM Hx

    where E0 is the amplitude of the wave.

    The expressions for ?, ?c, fc, ?g, a are the same as for TE waves.

    For TM wave the lowest cut off frequency in rectangular wave guide is for TM11 mode.

    If Which TM mode in rectangular waveguide has lowest cutoff frequency? TM11 TM01 TM10 TM21 Hz = 0 Ex = , the cutoff frequency for TM11 mode is about 12% more than that for TE20 mode.

    More questions

    • 1. The characteristic impedance of a cable is about

    • Options
    • A. 300 ?
    • B. 50 ?
    • C. 5 ?
    • D. 2 ?
      • Discuss
    • 2. A copper atom is neutral. Its core has a net charge of

    • Options
    • A. 0
    • B. + 1
    • C. - 1
    • D. + 2
      • Discuss
    • 3. The characteristics of which device has peak point and valley point

    • Options
    • A. SCR
    • B. PUT
    • C. SCS
    • D. Shockley diode
      • Discuss
    • 4. Schrodinger wave equation is partial differential equation.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. The output frequency of a cycloconverter can be changed by changing the firing angle.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. Most of the memory chips in static RAM

    • Options
    • A. do not require any supply
    • B. need 2 V supply
    • C. need 5 V supply
    • D. need 12 V supply
      • Discuss
    • 7. In crystalline solids, atoms are stacked in a regular manner.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. The classes of solid dielectrics are

    • Options
    • A. A, B, C, D, E, F, H
    • B. A E B F H C D
    • C. Y A E B F H C
    • D. A E B F H C
      • Discuss
    • 9. The unit for mmf is

    • Options
    • A. A
    • B. Wb
    • C. T
    • D. V
      • Discuss
    • 10. In a single phase full wave regulator, the firing angles in the positive and negative half cycles are generally

    • Options
    • A. equal
    • B. different
    • C. equal or different
    • D. different but sometimes equal
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.