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Electromagnetic Field Theory (Electrical Engineering) - MCQs


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Q1.
A transmission line whose characteristics impedance is a pure resistance
  • A. must be lossless line
  • B. must be a distortion less lines
  • C. may not be lossless line
  • D. may not be a distortionless line

    Discuss    
Q2.
Which of the following is a vector quantity?
  • A. standing wave ratio only
  • B. reflection coefficient only
  • C. gain
  • D. standing wave ratio of reflection coefficient

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Q3.
What causes electromagnetic wave polarization?
  • A. refraction
  • B. reflection
  • C. longitudinal nature of electromagnetic wave
  • D. transverse nature of electromagnetic wave

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Q4.
An open coil has
  • A. zero resistance and zero inductance
  • B. infinite resistance and infinite inductance
  • C. infinite resistance and zero inductance
  • D. zero resistance and infinite inductance

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Q5.
lower the self inductance of a coil
  • A. more will be the weber turns
  • B. more will be the EMF induced
  • C. lesser the flux produced by it
  • D. smaller the delay in establishing steady current through it

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Q6.
If in an iron code coil the iron core is removed so as to make the air cored coil, the inductance of the coil will be
  • A. more
  • B. less
  • C. the same
  • D. none of these

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