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Test: Transverse Electromagnetic Waves(TEM)


10 Questions MCQ Test Electromagnetic Theory | Test: Transverse Electromagnetic Waves(TEM)


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This mock test of Test: Transverse Electromagnetic Waves(TEM) for Electrical Engineering (EE) helps you for every Electrical Engineering (EE) entrance exam. This contains 10 Multiple Choice Questions for Electrical Engineering (EE) Test: Transverse Electromagnetic Waves(TEM) (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Transverse Electromagnetic Waves(TEM) quiz give you a good mix of easy questions and tough questions. Electrical Engineering (EE) students definitely take this Test: Transverse Electromagnetic Waves(TEM) exercise for a better result in the exam. You can find other Test: Transverse Electromagnetic Waves(TEM) extra questions, long questions & short questions for Electrical Engineering (EE) on EduRev as well by searching above.
QUESTION: 1

In a transverse electric magnetic wave, which of the following will be true?

Solution:

Answer: d
Explanation: In the transverse electric magnetic wave (TEM wave), both the electric and magnetic field strengths are transverse to the wave propagation.

QUESTION: 2

The cut off frequency of the TEM wave is

Solution:

Answer: a
Explanation: The TEM waves have both E and H perpendicular to the guide axis. Thus its cut off frequency is zero.

QUESTION: 3

Which component is non zero in a TEM wave?

Solution:

Answer: a
Explanation: In a TEM wave, the wave propagates along the guided axis. Thus the components Ez and Hz are zero. The attenuation is also zero. The non-zero component will be Ex.

QUESTION: 4

TEM wave can propagate in rectangular waveguides. State true/false.
Solution:

Answer: b
Explanation: The rectangular waveguide does not allow the TEM wave. TEM mode can exist only in two conductor system and not in hollow waveguide in which the centre conductor does not exist.

QUESTION: 5

The cut off wavelength in the TEM wave will be
Solution:

Answer: c
Explanation: The cut off frequency in a TEM wave is zero. Thus the cut off wavelength will be infinity.

QUESTION: 6

The guided wavelength of a TEM wave in a waveguide having a wavelength of 5 units is
Solution:

Answer: c
Explanation: The guided wavelength is same as the wavelength of the waveguide with a TEM wave. Thus the guided wavelength is 5 units.

QUESTION: 7

The guided phase constant of a TEM wave in a waveguide with a phase constant of 2.8 units is
Solution:

Answer: a
Explanation: The guided phase constant is same as the phase constant of the waveguide. For the given data, the guided phase constant is 2.8 units.

QUESTION: 8

Which type of transmission line accepts the TEM wave?
Solution:

Answer: b
Explanation: Hollow transmission lines support TE and TM waves only. The TEM wave is possible only in the coaxial cable transmission line, which is not hollow.

QUESTION: 9

For a TEM wave to propagate in a medium, the medium has to be
Solution:

Answer: d
Explanation: The medium in which the TEM waves propagate has to be non- dispersive. This implies the phase velocity and the characteristic impedance has to be constant over a wide band.

QUESTION: 10

Stripline and parallel plate waveguides support the TEM wave. State true/false. 
Solution:

Answer: a
Explanation: The stripline and parallel plate waveguides are not hollow and the dielectric is lossless. The medium is non dispersive. Thus the statement is true.

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