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Home ‣ Electronics and Communication Engineering ‣ Electromagnetic Field Theory Comments
  • Question

  • A uniform plane wave is one in which


  • Options
  • A. A uniform plane wave is one in which x = 0 . and are perpendicular and lie in a plane For uniform pl x A uniform plane wave is one in which x = 0 . and are perpendicular and lie in a plane For uniform pl = 0
  • B. A uniform plane wave is one in which x = 0 . and are perpendicular and lie in a plane For uniform pl . A uniform plane wave is one in which x = 0 . and are perpendicular and lie in a plane For uniform pl
  • C. A uniform plane wave is one in which x = 0 . and are perpendicular and lie in a plane For uniform pl and A uniform plane wave is one in which x = 0 . and are perpendicular and lie in a plane For uniform pl are perpendicular
  • D. A uniform plane wave is one in which x = 0 . and are perpendicular and lie in a plane For uniform pl and A uniform plane wave is one in which x = 0 . and are perpendicular and lie in a plane For uniform pl lie in a plane

  • Correct Answer
  • and lie in a plane 

    Explanation
    For uniform plane wave, E and H must be in a plane but perpendicular to each other.

    Electromagnetic Field Theory problems

    Search Results

    • 1. A rectangular waveguide measures 3 x 4.5 cm internally and has a 10 GHz signal propagated in it. Calculate the wave impedance for dominant mode.

    • Options
    • A. 130 p
    • B. 1.3 p
    • C. 120 p
    • D. 12 p
      • Discuss
    • 2. In a conductor which of the following relations hold good?

    • Options
    • A. ? x D = r
    • B. ? . D = r
    • C. ? x D = 0
    • D. ? . D = 0
      • Discuss
    • 3. The radiation resistance of a ?/16 wire dipole in free space will be nearly

    • Options
    • A. 1 ?
    • B. 3 ?
    • C. 13 ?
    • D. 30 ?
      • Discuss
    • 4. A transmission line is feeding 1 watt of power to a horn antenna having a gain of 10 dB. The antenna is matched to the transmission line. The total power radiated by the horn antenna into the free space is

    • Options
    • A. 10 watts
    • B. 1 watt
    • C. 0.1 watt
    • D. 0.01 watt
      • Discuss
    • 5. Find the radiation resistance of an antenna of length ?/10 meter?

    • Options
    • A. 8 ?
    • B. 780 ?
    • C. 7.8 ?
    • D. 78 ?
      • Discuss
    • 6. The function f(x - vot) represent which of the following?

    • Options
    • A. A stationary wave
    • B. A wave motion in forward direction
    • C. A wave motion in reverse direction
    • D. None of the above
      • Discuss
    • 7. A single phase half wave rectifier is feeding a resistive load. Input voltage v = Vm sin ?t. The output dc voltage is Vdc and output rms voltage is Vrms . If firing angle is 180°, Vdc and Vrms respectively are

    • Options
    • A. 0 and 0
    • B.
    • C. 0 and - Vm
    • D.
      • Discuss
    • 8. Assertion (A): A TRIAC is a bidirectional SCR.

      Reason (R): A TRIAC is a four layers 3 terminal device and can conduct in both directions.


    • 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
    • 9. In the below figure the average load current is 15 A. The rms value of transformer secondary current is

    • Options
    • A. 15 A
    • B. 10.61 A
    • C. 7.5 A
    • D. 14.14 A
      • Discuss
    • 10. In a circuit using a full wave converter (M - 2 connection) the PIV of each thyristor is 400 V. For the same output voltage and fully controlled bridge converter, PIV will be

    • Options
    • A. 400 V
    • B. 800 V
    • C. 200 V
    • D. 2002 V
      • Discuss

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