Top 350+ Solved Electromagnetics MCQ Questions Answer
Q. If the Voltage increases, what happens to dielectric strength?
a. increases
b. decreases
c. remains the same
d. becomes zero
Q. If the thickness of the material increases, what happens to the dielectric strength?
a. increases
b. decreases
c. remains the same
d. becomes zero
Q. Leakage in capacitors is primarily caused by
a. transistors
b. resistors
c. inductors
d. dc motors
Q. The flow of electrons in dielectric is due to
a. conduction
b. potential difference
c. breakdown
d. resistance
Q. The flow of electrons which does not pass through the battery is known as
a. displacement current
b. leakage current
c. either displacement or leakage current
d. neither displacement nor leakage current
Q. The free electrons in practical dielectrics is due to _
a. there are no free electrons
b. conductors
c. impurities
d. both conductors and impurities
Q. What is the type of current where the electrons actually move?
a. displacement current
b. conduction current
c. both conduction and displacement current
d. neither conduction nor displacement current
Q. What is the type of current caused due to variations in the field?
a. displacement current
b. conduction current
c. both conduction and displacement current
d. neither conduction nor displacement current
Q. Under normal conditions capacitors have _
a. displacement current
b. conduction current
c. both conduction and displacement current
d. neither conduction nor displacement current
Q. Displacement current depends on _
a. moving charges
b. change in time
c. both moving charges and change in time
d. neither moving charges nor change in time
Q. Magnetic fields between the parallel plates of a capacitor are due to?
a. displacement current
b. conduction current
c. both conduction and displacement current
d. neither conduction nor displacement current