Top 350+ Solved Electromagnetics MCQ Questions Answer
Q. When the dielectric is homogeneous,the potential gradient is
a. uniform
b. non-uniform
c. zero
d. any of the above
Q. The potential gradient across the material of low permittivity is than across thematerial of high permittivity.
a. smaller
b. greater
c. both (a) and (b)
d. none of the above
Q. field is associated with the capacitor.
a. electric
b. magnetic
c. both (a) and (b)
d. none of the above
Q. A capacitor having capacitance of 5 uF is charged to a potential difference of 10,000 V.The energy stored in the capacitor is
a. 50 joules
b. 150 joules
c. 200 joules
d. 250 joules
Q. A single core cable used on 33000 V has conductor diameter 10 mm and the in¬ternaldiameter of sheath 25 mm. The maximum electrostatic stress in the cable is
a. 62 x 105 v/m
b. 72 x 105 v/m
c. 82 x 105 v/m
d. 92 x 105 v/m
Q. The total deficiency or excess of electrons in a body is known as
a. current
b. voltage
c. potential gradient
d. charge
Q. The phenomenon of an uncharged body getting charged merely by the nearness of acharged body is known as
a. pholoelectric effect
b. chemical effect
c. magnetic effect
d. induction
Q. The value of E within the field due to a point charge can be found with the help of
a. faraday\s laws
b. kirchhoff s laws
c. coulomb\s laws
d. none of the above
Q. Electric intensity at any point in an electric field is equal to the at that point.
a. electric flux
b. magnetic flux density
c. potential gradient
d. none of the above
Q. Electric displacement is a quantity.
a. scalar
b. vector
c. both of the above
d. none of the above
Q. Dielectric strength with increasing thickness
a. increases
b. decreases
c. remains unaltered
d. none of the above
Q. The property of a capacitor to store electricity is called its
a. capacitance
b. charge
c. energy
d. none of the above