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## 121. ꜫ₀ is also called as:

A) Proximity constant

B) Permittivity of free space

C) Coulombs Constant.

D) None of the above

## 122. The value of Coulomb force depends upon:

A) The Conductors

B) The medium between the charges

C) The charges in the conducting surfaces

D) All of the above.

A)ꜫ

B) π

C)ϒ

D)µ

## 124. A material medium with high permittivity is a medium which:

A) Increases the coulomb force between the charges

B) reduces the coulomb force between the charges.

C) Increases the resistance of conductor

D) none of the above.

## 125. The permittivity of air is ______ than vacuum.

A) Lesser

B) Equal

C) Slightly greater

D) Greater

## 126. The attraction of an uncharged object by a charged object near is due to:

A) Electrostatics

B) Self Induction

C) Mutual induction

D) Electrostatic induction

## 127. The coulomb forces ______ as the distance between similar charges increases.

A) Increases

B) Decreases

C) remains same

D) it has no relation to the distance

A) Attractive

B) Repulsive

C) Both A and B

D) None

## 129. Coulomb Forces are_______

A) Attractive

B) Repulsive

C) Both A and B

D) None of the above.

## 130. Electrostatic forces depend on:

A) The sq of distance between charges

B) Inverse of sq of distance between charges

C) Mass of the point charge

D) Velocity of the point charge

A) 25N

B) 32N

C) 47N

D) 58 N

## 132. The region around a charge in which an electric test charge would experience an electric force is called:

A) Magnetic Field

B) Force Field

C) Electric Force

D) Electric Field.

## 133. The strength of field at any point is called:

A) Electric Field

B) Electric Power

C) Electric Field Intensity

D) None of the above.

## 134. An electric field exists in the region of space around a charged object in ____ dimensions.

A) One

B) Two

C) Three

D) Electric Field does not exist around object.

A) True

B) False

## 136. E= FE /q0, this equation gives the mathematical representation of:

A) Electric Field

B) Electric Field intensity

C) Electrical Induction

D) None of the above.

## 137. The SI unit of electric field intensity is :

A) N

B) NC^-1

C) ms^-1

D) none of the above.

## 138. Test charge is always taken:

A) Positive

B) Negative

C) Does not matter.

## 139. The size of test charge is always taken small because:

A) To avoid repulsion

B) To avoid attraction

C) Both A and B

D) To avoid distortion in the field.

## 140. Electric field lines can be defined as:

A) The path of attraction

B) The path of repulsion

C) The direction of electric field

D) None of the above