Top 250+ Solved Electromagnetic Field MCQ Questions Answer
Q. Which of the following is/are scalar quantity(s)?
a. distance
b. density
c. temperature
d. all of these
Q. Which of the following is/are vector quantity(s)?
a. force
b. electric field intensity
c. acceleration
d. all of these
Q. A unit vector has _______ direction to that of the main vector.
a. same
b. opposite
c. normal upwards
d. normal downwards
Q. ________ of two vectors uses the Law of Parallelogram.
a. multiplication
b. division
c. addition
d. all of these
Q. Multiplication of two vectors is __________.
a. vector
b. scalar
c. either vector or scalar
d. cannot say
Q. ___________ product is governed by the Right-Hand Screw Rule.
a. vector
b. scalar
c. simple mathematical
d. none of these
Q. The vector product obeys the __________ law.
a. Commutative
b. Associative
c. Distributive
d. Parallelogram
Q. ____________ product of two unit vectors is the third unit vector.
a. vector
b. scalar
c. both (a) and (b)
d. none of these
Q. In a Cartesian coordinate system, axes x, y and z are at __________to each other.
a. 45°
b. 90°
c. 120°
d. 180°
Q. In Cylindrical coordinate systems, unit vector ar is __________.
a. directed outwards radially
b. normal to cylindrical surface at a point
c. both (a) and (b)
d. none of these
Q. Cylindrical coordinate 'r' is related to the Cartesian coordinate as__________.
a. (x, y)
b. (x + y)
c. (x2/y2)
d. (x2 + y2)1/2