Olete.in – MCQs, Mock Tests & Government Job Prep| CBES Board Class 12 CBES Board(Class 12-Physics)MCQ Questions with Answers(Chapter -1 Electric Charges and Fields)

1. The surface considered for Gauss’s law is called
Closed surface
Spherical surface
Gaussian surface
Plane surface

2. Which of the following statements is not true about Gauss’s law?
Gauss’s law is true for any closed surface.
The term q on the right side side of Gauss’s law includes the sum of all charges enclosed by the surface.
Gauss’s law is not much useful in calculating electrostatic field when the system has some symmetry.
Gauss’s law is based on the inverse square dependence on distance contained in the coulomb’s law

3. The force per unit charge is known as
electric flux
electric field
electric potential
electric current

4. Electric field lines provide information about
field strength
direction
nature of charge
all of these

5. The unit of electric dipole moment is
newton
coulomb
farad
debye

6. Consider a region inside which, there are various types of charges but the total charge is zero. At points outside the region
the electric field is necessarily zero.
the electric field is due to the dipole moment of the charge distribution only.
the dominant electric field is inversely pro-portional to r3, for large r (distance from ori-gin).
the work done to move a charged particle along a closed path, away from the region will not be zero.