Explore topic-wise MCQs in Electromagnetic Theory.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Electromagnetic Theory knowledge and support exam preparation. Choose a topic below to get started.

1.

THE_PARAMETERS_S11_AND_S22_INDICATE_THE_TRANSMISSION_COEFFICIENTS._STATE_TRUE/FALSE.?$

A. True
B. False
Answer» B. False
Discussion
2.

The waveguides increase the transmission of the electromagnetic waves. State true/false.$

A. True
B. False
Answer» B. False
Discussion
3.

The waveguides are materials with characteristics o?

A. Low bulk resistivity
B. High bulk resistivity
C. High conductivity
D. Low conductivity
Answer» B. High bulk resistivity
Discussion
4.

For the matched line, the parameters S12 and S21 are

A. 1
B. 0
C. -1
D. ‚àû
Answer» C. -1
Discussion
5.

Which of the following two parameter models cannot be used to represent a transmission line?

A. H parameter model
B. T parameter model
C. ABCD parameter model
D. S parameter model
Answer» B. T parameter model
Discussion
6.

The scattering parameters are used to indicate the

A. Permittivity and permeability
B. Electric and magnetic field intensities
C. Reflection and transmission coefficients
D. Frequency and wavelength
Answer» D. Frequency and wavelength
Discussion
7.

The circular waveguides use which function in the frequency calculation?

A. Laplace function
B. Schottky function
C. Bessel function
D. Transfer function
Answer» D. Transfer function
Discussion
8.

The modes are calculated from which parameter?

A. Frequency
B. Wavelength
C. Phase constant
D. V number
Answer» E.
Discussion
9.

The dominant mode in waveguide is the mode which has

A. Highest frequency
B. Highest wavelength
C. Lowest phase constant
D. Highest attenuation
Answer» C. Lowest phase constant
Discussion
10.

The phenomenon employed in the waveguide operation is

A. Reflection
B. Refraction
C. Total internal reflection
D. Adsorption
Answer» D. Adsorption
Discussion