Top 350+ Solved Electromagnetics MCQ Questions Answer
Q. The lines of force are said to be
a. real
b. imaginary
c. drawn to trace the direction
d. not significant
Q. Electric flux density in electric field is referred to as
a. number of flux lines
b. ratio of flux lines crossing a surface and the surface area
c. direction of flux at a point
d. flux lines per unit area
Q. The electric flux density is the
a. product of permittivity and electric field intensity
b. product of number of flux lines and permittivity
c. product of permeability and electric field intensity
d. product of number of flux lines and permeability
Q. Which of the following correctly states Gauss law?
a. electric flux is equal to charge
b. electric flux per unit volume is equal to charge
c. electric field is equal to charge density
d. electric flux per unit volume is equal to volume charge density
Q. A point charge 2nC is located at origin. What is the potential at (1,0,0)?
a. 12
b. 14
c. 16
d. 18
Q. The potential difference in an open circuit is
a. zero
b. unity
c. infinity
d. circuit does not exist open
Q. The potential taken between two points across a resistor will be
a. positive
b. negative
c. zero
d. infinity
Q. The voltage at any point in an ac circuit will be
a. peak voltage
b. rms voltage
c. average voltage
d. source voltage
Q. Gauss law cannot be used to find which of the following quantity?
a. electric field intensity
b. electric flux density
c. charge
d. permittivity