Explore topic-wise MCQs in Electromagnetic Theory.

This section includes 12 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.

IN_MATCHED_LINE,_THE_TRANSMISSION_COEFFICIENT_IS?$

A. 0
B. 1
C. -1
D. Infinity
Answer» C. -1
2.

The transmitted power in a transmission line, when the reflection coefficient and the incident power are 0.6 and 24V respectively, is$

A. 15.36
B. 51.63
C. 15.63
D. 51.36
Answer» B. 51.63
3.

Find_the_power_reflected_in_a_transmission_line,_when_the_reflection_coefficient_and_input_power_are_0.45_and_18V_respectively.$

A. 3.645
B. 6.453
C. 4.563
D. 5.463
Answer» B. 6.453
4.

The_reflection_coefficient_of_a_short_circuit_transmission_line_is_-1._State_True/False.

A. True
B. False
Answer» B. False
5.

The reflection coefficient of a transmission line having characteristic and load impedances as 50 and 30 ohm respectively i?

A. 1/4
B. 1/8
C. 1/2
D. 3/4
Answer» B. 1/8
6.

The transmission coefficient in a wave travelling through two media having permittivities 4 and 1 is

A. 1/4
B. 3/2
C. 3/4
D. 2/3
Answer» E.
7.

The transmission coefficient in a wave travelling through two media having intrinsic impedances of 5.5 and 1.33 is

A. 0.389
B. 0.55
C. 0.133
D. 0.42
Answer» B. 0.55
8.

Calculate the transmission coefficient, when the incident and transmitted amplitudes are 10 and 7 respectively.

A. 17
B. 3
C. 10/7
D. 0.7
Answer» E.
9.

The reflection coefficient of a wave travelling through two media having permittivities 4 and 9 respectively is

A. 0
B. 0.5
C. 0.25
D. 0.2
Answer» E.
10.

Find the reflection coefficient of the wave passing through two media having intrinsic impedances of 4 and 9 respectively.

A. 0.5
B. 1
C. 0.38
D. 0.1
Answer» D. 0.1
11.

The incident wave amplitude is 24 units. Find the reflected wave amplitude if the reflection coefficient is 0.6.

A. 14.4
B. 16.6
C. 13.3
D. 11.1
Answer» B. 16.6
12.

The reflection coefficient of a wave with transmission coefficient 0.35 is

A. 1.35
B. 0.65
C. 0.35
D. 0.7
Answer» C. 0.35