Top 250+ Solved Electromagnetic Field MCQ Questions Answer
Q. Divergence of vector field is net outward flux of a vector per unit ______.
a. surface area
b. volume
c. length
d. none of these
Q. Divergence at a point is positive if field lines are _________
a. diverging
b. converging
c. both (a) an (b)
d. none of these
Q. Electrostatic field is _________ a perfect conductor.
a. same inside
b. infinite inside
c. zero inside
d. none of these
Q. Potential is _________ a perfect conductor.
a. same inside
b. infinite inside
c. zero inside
d. none of these
Q. As per Gauss' Law, charge density inside a perfect conductor is zeroif E is _________.
a. positive
b. negative
c. unity
d. zero
Q. The direction of electric dipole moment is _________ applied electric field.
a. orthogonal
b. contrary
c. same
d. none of these
Q. Electric polarization of a material is electric dipole moment per unit _________.
a. length
b. area
c. volume
d. none of these
Q. Which of the following is not an inductor?
a. toroid
b. transmission line
c. solenoid
d. none of these
Q. Magnetic field at any point inside a long solenoid is _________.
a. zero
b. infinity
c. constant
d. none of these
Q. For a medium to be a quasi-conductor, the dissipation factor shouldbe _________.
a. infinity
b. zero
c. unity
d. none of these