Top 350+ Solved Electromagnetics MCQ Questions Answer
Q. The characteristic impedance of a quarter wave transformer with load andinput impedances given by 30 and 75 respectively is
a. 47.43
b. 37.34
c. 73.23
d. 67.45
Q. The input impedance of a quarter wave line 50 ohm and load impedance of20 ohm is
a. 50
b. 20
c. 1000
d. 125
Q. The reflection coefficient of a wave with transmission coefficient 0.35 is
a. 1.35
b. 0.65
c. 0.35
d. 0.7
Q. The incident wave amplitude is 24 units. Find the reflected wave amplitude ifthe reflection coefficient is 0.6.
a. 14.4
b. 16.6
c. 13.3
d. 11.1
Q. The transmission coefficient in a wave travelling through two media havingintrinsic impedances of 5.5 and 1.33 is
a. 0.389
b. 0.55
c. 0.133
d. 0.42
Q. The transmission coefficient in a wave travelling through two media havingpermittivities 4 and 1 is
a. 1/4
b. 3/2
c. 3/4
d. 2/3
Q. Standing waves occurs due to
a. impedance match
b. impedance mismatch
c. reflection
d. transmission