# CBES Board Class 12-CBES Board(Class 12-Physics)MCQ Questions with Answers(Chapter /1 Electric Charges and Fields) Sample Test,Sample questions

## Question: `Consider a region inside which, there are various types of charges but the total charge is zero. At points outside the region`

1.the electric field is necessarily zero.

2.Â the electric field is due to the dipole moment of the charge distribution only.

3.Â the dominant electric field is inversely pro-portional to r3, for large r (distance from ori-gin).

4.the work done to move a charged particle along a closed path, away from the region will not be zero.

## Question: `Electric field lines provide information about`

1.Â field strength

2.direction

3.nature of charge

4.all of these

## Question: `ï»¿Â The surface considered for Gaussâ€™s law is called`

1.Closed surface

2.Spherical surface

3.Gaussian surface

4.Plane surface

## Question: `The force per unit charge is known as`

1.electric flux

2.electric field

3.Â electric potential

4.electric current

1.newton

2.coulomb

4.debye

## Question: `Which of the following statements is not true about Gaussâ€™s law?`

1.Gaussâ€™s law is true for any closed surface.

2.The term q on the right side side of Gaussâ€™s law includes the sum of all charges enclosed by the surface.

3.Gaussâ€™s law is not much useful in calculating electrostatic field when the system has some symmetry.

4.Gaussâ€™s law is based on the inverse square dependence on distance contained in the coulombâ€™s law

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