Explore topic-wise MCQs in Electromagnetic Theory.

This section includes 8 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 phase constant and frequency are related by

A. tPhase constant
B. tPhase constant 1/
C. tPhase constant 1/2
D. tPhase constant /2
Answer» B. tPhase constant 1/
2.

The cut off frequency of a TE wave with waveguide dimension of a= 3.5 cm in a medium of permittivity 2.2 is

A. t2.88 GHz
B. t3.32 GHz
C. t4.5 GHz
D. t2.12 GHz
Answer» B. t3.32 GHz
3.

The attenuation of a 50 ohm transmission line having a resistance of 100 ohm is

A. t0.01
B. t0.1
C. t1
D. t10
Answer» D. t10
4.

The cut off frequency of a rectangular waveguide of dimensions 3 cm x 1.5 cm is

A. t12 GHz
B. t6 GHz
C. t4 GHz
D. t5 GHz
Answer» E.
5.

The intrinsic impedance of a TE wave having a cut off frequency of 6 GHz at a frequency of 7.5 GHz in air is

A. t628.33
B. t338.62
C. t498.76
D. t342.24
Answer» B. t338.62
6.

The mode which has the highest wavelength is called

A. tDominant mode
B. tEvanescent mode
C. tGenerate mode
D. tDegenerate mode
Answer» B. tEvanescent mode
7.

Does the waveguide with dimensions 3 cm x 5.5 cm exist?

A. tYes
B. tNo
Answer» C.
8.

The number of modes in a waveguide having a V number of 10 is

A. t10
B. t25
C. t100
D. t50
Answer» E.