• Electrical Engineering Reference

# Electromagnetic Theory MCQ Questions & Answers

Electromagnetic Theory MCQs : This section focuses on the "Basics" of Electromagnetic Theory. These Multiple Choice Questions (MCQs) should be practiced to improve the Electromagnetic Theory skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

Electromagnetic phenomena are defined in terms of the electromagnetic force, sometimes called?

A. Frictional Force
B. Lorentz Force
C. Tension Force
D. Contact Forces

Question 2

Which force binds quarks to form nucleons, and binds nucleons to form nuclei?

A. the gravitational force
B. the weak nuclear force
C. the strong nuclear force
D. All of the above

Question 3

All other forces (e.g., friction, contact forces) are derived from these four fundamental forces and they are known as?

A. Non-fundamental forces
B. Fundamental forces
C. Natural Force
D. Gravitational Force

Question 4

The fundamental SI unit of electric current?

A. Volt
B. Ohm
C. Siemen
D. Ampere

Question 5

At high energy the weak force and electromagnetic force are unified as a single electroweak force.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

Question 6

The tangential component of an electric field will be continuous in which boundary?

A. Conductor-Conductor
B. Conductor-Dielectric
C. Dielectric-Dielectric
D. Any boundary

Question 7

For an electromagnetic wave incident from one medium to a second medium, total internal reflection takes place when

A. Angle of incidence is equal to the Brewster angle with E field perpendicular to the plane of incidence
B. Angle of incidence is equal to the Brewster angle with E field parallel to the plane of incidence
C. Angle of incidence is equal to the critical angle with the wave moving from the denser to rarer medium
D. Angle of incidence is equal to the critical angle with the wave moving from the rarer to denser medium

Question 8

Magnetic vector potential is a vector

A. Whose curl is equal to the electric field intensity
B. Whose curl is equal to the magnetic flux density
C. Whose divergence is equal to electric potential
D. Which is equal to the vector product E x H

Question 9

Electromagnetic forces are responsible for the chemical bonds between atoms which create molecules, and intermolecular forces.

A. Yes
B. No
C. Can be yes or no
D. Can not say