Explore topic-wise MCQs in Electromagnetic Theory.

This section includes 14 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.

A waveguide imitates which type of filter characteristics?

A. Low pass filter
B. High pass filter
C. Band pass filter
D. Band reject filter
Answer» C. Band pass filter
2.

The exciter of the waveguide in a transmission line is the

A. Transmitter
B. Receiver
C. Transponder
D. Antenna
Answer» E.
3.

The phase of the wave after the installation of the guided terminations will be

A. 0
B. 45
C. 90
D. 180
Answer» B. 45
4.

The cut off frequency of a waveguide with resonant cavity is given bya) V√((m/a)2 + (n/b)2 + (p/d)2)/2b) V√((m/a)2 + (n/b)2 + (p/d)2)c) 2V√((m/a)2 + (n/b)2 + (p/d)2)d) V√((m/

A. V√((m/a)2 + (n/b)2 + (p/d)2)/2b) V√((m/a)2 + (n/b)2 + (p/d)2)c) 2V√((m/a)2 + (n/b)2 + (p/d)2)d) V√((m/a) + (n/
B. 2 + (p/d)2)/2b) V√((m/a)2 + (n/b)2 + (p/d)2)
C. 2V√((m/a)2 + (n/b)2 + (p/d)2)d) V√((m/a) + (n/b) + (p/
D. 2)/2b) V√((m/a)2 + (n/b)2 + (p/d)2)c) 2V√((m/a)2 + (n/b)2 + (p/d)2)d) V√((m/a) + (n/b) + (p/d))/2
Answer» B. 2 + (p/d)2)/2b) V√((m/a)2 + (n/b)2 + (p/d)2)
5.

THE_EXCITER_OF_THE_WAVEGUIDE_IN_A_TRANSMISSION_LINE_IS_THE?$

A. Transmitter
B. Receiver
C. Transponder
D. Antenna
Answer» E.
6.

A_waveguide_imitates_which_type_of_filter_characteristics?$

A. Low pass filter
B. High pass filter
C. Band pass filter
D. Band reject filter
Answer» C. Band pass filter
7.

The phase of the wave after the installation of the guided terminations will b?

A. 0
B. 45
C. 90
D. 180
Answer» B. 45
8.

The form or mode of propagation is determined by which factors?

A. Type of excitation device
B. Location of excitation device
C. Type and location of the excitation device
D. Waveguide characteristics
Answer» D. Waveguide characteristics
9.

The power of a wave having an electric field strength of 12.8 units is

A. 0.217
B. 0.721
C. 0.127
D. 0.172
Answer» B. 0.721
10.

The power of a wave having a magnetic field intensity of 2.5 units is

A. 1.17 kilo watt
B. 1.17 mega watt
C. 1.17 watt
D. 11.7 watt
Answer» B. 1.17 mega watt
11.

The power of a wave in a transmission line, when the current and the resistance are 5A and 120 ohm respectively is

A. 3000
B. 4000
C. 2000
D. 1500
Answer» B. 4000
12.

The cut off frequency of a waveguide with resonant cavity is given by

A. V‚àö((m/a)<sup>2</sup> + (n/b)<sup>2</sup> + (p/d)<sup>2</sup>)/2
B. V‚àö((m/a)<sup>2</sup> + (n/b)<sup>2</sup> + (p/d)<sup>2</sup>)
C. 2V‚àö((m/a)<sup>2</sup> + (n/b)<sup>2</sup> + (p/d)<sup>2</sup>)
D. V‚àö((m/a) + (n/b) + (p/d))/2
Answer» B. V‚Äö√Ñ√∂‚àö‚Ć‚àö‚àÇ((m/a)<sup>2</sup> + (n/b)<sup>2</sup> + (p/d)<sup>2</sup>)
13.

When a waveguide is terminated, the mode of the guided termination will be

A. zero
B. non-zero
C. infinite
D. does not exist
Answer» C. infinite
14.

The resonant circuit in a waveguide refers to the

A. Tank circuit
B. RC circuit
C. Bridge circuit
D. Attenuator circuit
Answer» B. RC circuit