Top 350+ Solved Electromagnetics MCQ Questions Answer
Q. Gauss law for magnetic fields is given by
a. div(e) = 0
b. div(b) = 0
c. div(h) = 0
d. div(d) = 0
Q. Gauss law can be used to compute which of the following?
a. permittivity
b. permeability
c. radius of gaussian surface
d. electric potential
Q. Gauss law can be evaluated in which coordinate system?
a. cartesian
b. cylinder
c. spherical
d. depends on the gaussian surface
Q. Gauss law cannot be expressed in which of the following forms?
a. differential
b. integral
c. point
d. stokes theorem
Q. With Gauss law as reference which of the following law can be derived?
a. ampere law
b. faraday’s law
c. coulomb’s law
d. ohm’s law
Q. The electric flux density and electric field intensity have which of the following relation?
a. linear
b. nonlinear
c. inversely linear
d. inversely nonlinear
Q. The Cartesian system is also called as
a. circular coordinate system
b. rectangular coordinate system
c. spherical coordinate system
d. space coordinate system
Q. The volume of a parallelepiped in Cartesian is
a. dv = dx dy dz
b. dv = dx dy
c. dv = dy dz
d. dv = dx dz
Q. Find the susceptibility of a material whose dielectric constant is 2.26.
a. 1.26
b. 3.26
c. 5.1
d. 1
Q. When the electric field becomes zero, which of the following relations hold good?
a. e = p
b. d = p
c. b = p
d. h = p
Q. Conduction in metals is due to
a. electrons only
b. electrons and holes
c. holes only
d. applied electric field
Q. Find the band gap energy when a light of wavelength 1240nm is incident on it.
a. 1ev
b. 2ev
c. 3ev
d. 4ev
Q. Alternating current measured in a transmission line will be
a. peak value
b. average value
c. rms value
d. zero