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A) Half

B) One Quarter

C) Double

D) Four times

## 182. The value of one coulomb constant k, depends on:

A) Value of charges

B) Material Medium

C) Separation between the charges

D) All of the these.

B) Coulomb

C) Volt

D) NC^-1

A) Q1,Q

B) Q,0

C) Q1, -Q

D) Q/2 , -Q/2

## 185. – Capacitor is used in which of the following:

A) Tuning  Transmitter

D) All of the above.

## 186. Positive charge:

A) Attract positive charge

B) Repels Positive Charge

C) Attracts neutral charge

D) repels neutral charge.

## 187. An object attains excess negative charge after being rubbed against another object. Which is:

A) Neutral

B) Negatively charged

C) Charged

D)  all of the above.

## 188. When you rub s plastic rod against your hair several times and put it near some bits of paper, the pieces of paper are attracted towards it. What does this mean:

A) The rod and paper are oppositely charged

B) The rod acquires a positive charge

C) The rod and paper have similar charges

D) The rod has negative charge

## 189. According to coulomb law, what happens to the attraction of two oppositely charged objects as their distance of separation increases.

A) Increases

B) Decreases

C) Remains unchanged

D) cannot be determined

## 190. The Coulomb law is applicable for charges that are:

A) Moving and Point charges

B) Moving and non point charges

C) Stationary and point charges

D) Stationary and large charges

A) 0.5 V

B) 2V

C) 5 V

D) 10 V

A) 1q and 4q

B)-1q and -4q

C) 2q and 2 q

D) 2q and -2q

## 193. Electric field lines:

A) always cross each other

B) never cross each other

C) cross each other in the strong region

D) Cross each other the weakest region

A) VC

B) Q/V

C) QV

D) V/Q

A) Joule

B) Volt

C) Coulomb

D) Watt

B) Volta

C) Newton

D) Coulomb

A) French

B) Italian

C) American

D) Dutch

## 198. The region around a magnet where magnetic effects can be observed:

A) Electric field

B) Magnetic Field

C) Both A and B

D) None of the above

## 199. When charges move in conductor they generate:

A) Heat

B) Electric Field

C) Magnetic Field

D) Electromagnetic Field

## 200. When charges are at rest they produce:

A) Heat

B) Electric Field

C) Magnetic Field

D) None of the above.