Top 350+ Solved Electromagnetics MCQ Questions Answer
Q. A crack in the magnetic path of an inductor will result in
a. unchanged inductance
b. increased inductance
c. zero inductance
d. reduced inductance
Q. A coil is wound on iron core which carries current I. The self-induced voltage in the coilis not affected by
a. variation in coil current
b. variation in voltage to the coil
c. change of number of turns of coil
d. the resistance of magnetic path
Q. Which of the following parameters is not a primary parameter?
a. resistance
b. attenuation constant
c. capacitance
d. conductance
Q. The networks in which the R, L, C parameters are individually concentrated orlumped at discrete points in the circuit are called
a. lumped
b. distributed
c. parallel
d. paired
Q. The lines having R, L, C distributed along the circuit are called
a. lumped
b. distributed
c. parallel
d. paired
Q. Find the receiving impedance of a transmission line having a voltage of 24Vand a conduction current of 1.2A is
a. 25.2
b. 22.8
c. 28.8
d. 20
Q. When a transmission line has a load impedance same as that of thecharacteristic impedance, the line is said to be
a. parallel
b. perpendicular
c. polarized
d. matched
Q. The frequency of a wave travelling in a transmission line with velocity 4 x 108and wavelength 3 units is
a. 0.75 ghz
b. 0.133 ghz
c. 7.5 ghz
d. 1.33 ghz