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Home Electronics and Communication Engineering Electromagnetic Field Theory Comments

  • Question
  • Which one of the following does represents the electric field lines for the TE02 mode in the cross section of a hollow rectangular metallic waveguide?


  • Options
  • A. Which one of the following does represents the electric field lines for the TE02 mode in the cross s
  • B. Which one of the following does represents the electric field lines for the TE02 mode in the cross s
  • C. Which one of the following does represents the electric field lines for the TE02 mode in the cross s
  • D. Which one of the following does represents the electric field lines for the TE02 mode in the cross s

  • Correct Answer
  •  

    Explanation
    TE02m = 0, n = 2

    in x direction no propagation, only in y, and normal to the waveguide, tangential component is continuous.


    Electromagnetic Field Theory problems


    Search Results


    • 1. The velocity of electromagnetic wave in a good conductor is

    • Options
    • A. 3 x 108 m/s
    • B. more than 3 x 108 m/s
    • C. very low
    • D. high
    • Discuss
    • 2. The displacement flux density at a point on the surface of a perfect conductor is = 2(ax - 3 az)c/m2 pointing away from the surface. The charge density at that point c/m2 will be

    • Options
    • A. 2
    • B. - 2
    • C. 4
    • D. - 4
    • Discuss
    • 3. What is the characteristic impedance at 10 MHz?

    • Options
    • A. 547.7 ?
    • B. 54.7 ?
    • C. 5.47 ?
    • D. .547 ?
    • Discuss
    • 4. Consider a 300 ?, quarter wave long at 1 GHz transmission line as shown in figure. It is connected to a 10 V, 50 ? source at one end is left open circuited at the other end. The magnitude of the voltage at the open circuit end of the line is

    • Options
    • A. 10 V
    • B. 5 V
    • C. 60 V
    • D. 60/7 volt
    • Discuss
    • 5. A plane wave is characterized by the wave is

    • Options
    • A. linearly polarized
    • B. circularly polarized
    • C. elliptically polarized
    • D. unpolarized
    • Discuss
    • 6. A parallel polarized wave is incident from air into paraffin having relative permittivity 3, the value of its Brewster angle is

    • Options
    • A. 0°
    • B. 30°
    • C. 45°
    • D. 60°
    • Discuss
    • 7. For a 400 kHz transmission line having L = 0.5 mH/km, C = 0.08 mF and negligible R and G, the value of propagation constant P will be

    • Options
    • A. 15.9 radians/km
    • B. 31.8 radians/km
    • C. 63.6 radians/km
    • D. 105.4 radians/km
    • Discuss
    • 8. The Depth of penetration of EM wave in medium having conductivity ? at a frequency of 1 MHz is 25 cm. The depth of penetration at a frequency of 4 MHz will be

    • Options
    • A. 6.25 cm
    • B. 12.50 cm
    • C. 50 cm
    • D. 100 cm
    • Discuss
    • 9. Radiation intensity of a dipole depends strongly on frequency. If at a frequency f, the intensity of radiation is 'I'. Then at a frequency of f/2, the intensity will be

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 10. The divergence of the electric field intensity at any point equals

    • Options
    • A. 1/4 p?0 times the volume charge density
    • B. l/?0 times the volume charge density at that point
    • C. ?0 times the volume charge density at that point
    • D. the volume charge density at that point
    • Discuss


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