1000+ Electromagnetic Fields Quiz Questions and Answers Pdf - 1
Question: 1
For a linear electromagnetic circuit, which of the following statement is true?
(A) field energy is greater than the co-energy
(B) field energy is equal to the co-energy
(C) co-energy is zero
(D) field energy is lesser than the co-energy
Ans: B
field energy is equal to the co-energy
Question: 2
What is the value of total electric flux coming out of a closed surface?
(A) equal to the total surface charge density
(B) equal to volume charge density
(C) equal to the total charge enclosed by the surface
(D) zero
Ans: C
equal to the total charge enclosed by the surface
Question: 3
In the left hand rule, forefinger always represents
(A) magnetic field
(B) voltage
(C) current
(D) direction of force on the conductor
Ans: A
magnetic field
Question: 4
According to Coulomb’s law, the force of attraction or repulsion, between to electrical charges is
(A) directly proportional to the distance between them
(B) inversely proportional to the distance between them
(C) inversely proportional to the square of the distance between them
(D) directly proportional to the square of the distance between them
Ans: C
inversely proportional to the square of the distance between them
Question: 5
The magnetism left in the iron after exciting field has been removed is known as
(A) reluctance
(B) susceptance
(C) permeance
(D) residual magnetism
Ans: D
residual magnetism
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