Top 350+ Solved Electromagnetics MCQ Questions Answer
Q. Standing wave ratio is defined as the
a. ratio of voltage maxima to voltage minima
b. ratio of current maxima to current minima
c. product of voltage maxima and voltage minima
d. product of current maxima and current minima
Q. Find the standing wave ratio, when a load impedance of 250 ohm isconnected to a 75 ohm line.
a. 0.3
b. 75
c. 250
d. 3.33
Q. The maximum impedance of a 50 ohm transmission line with SWR of 3 is
a. 50/3
b. 3/50
c. 150
d. 450
Q. The minimum impedance of a 75 ohm transmission line with a SWR of 2.5 is
a. 100
b. 50
c. 25
d. 30
Q. The current reflection coefficient of a line with voltage reflection coefficient of0.65 is given by
a. 0
b. 0.65
c. -0.65
d. 0.35
Q. The transmission coefficient is given by 0.65. Find the return loss of thewave.
a. 9.11
b. 1.99
c. 1.19
d. 9.91
Q. The intrinsic impedance of a wave with electric and magnetic field of 10 and8 respectively is
a. 1.6
b. 1.11
c. 1.25
d. 0.8
Q. The skin effect is a phenomenon observed in
a. insulators
b. dielectrics
c. conductors
d. semiconductors