ECAT Physics Chapter 12 Electrostatics Online Test

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  • Chapter NameCh 12 - Electrostatics
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ECAT Physics Chapter 12 Electrostatics Online Test

  • Total Questions15

  • Time Allowed20

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ECAT Physics Chapter 12 Electrostatics Online Test

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Question # 1

An electron of charge e coulomb passes through a potential difference of V volts its energy in joules will be

Question # 2

Electron volt is the unit of

Question # 3

The earth's potential is taken as

Question # 4

106electrons are moving through a wire per second, the current developed is

Question # 5

Electric potential of earth is taken to be zero because the earth is good

Question # 6

Consider a spherical shell of metal at he centre of which a positive point charge is kept

Question # 7

The conventional current in a circuit is defined as " current which passes from a point at higher potential to a point at lower potential as if it represent a movement of

Question # 8

The SI unit of conductivity is

Question # 9

An electric charge at rest is

Question # 10

The resistance of 20 cm long wire is 10Ω. When the length is changed to 40 cm. The new resistance is

Question # 11

A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates. The quantity that remains unchanged is

Question # 12

Two electric bulbs of 200 W and 100 W have same voltage. If R1and R2be their resistance respectively then

Question # 13

The force of repulsion between two point charges is F, when these are at a distance 0.1 m apart. Now the point charges are replaced by sphere of radii 5 cm each having the same charge as that of the respective point charges. The distance between their centre is again kept 0.1 m ; then the force of repulsion will

Question # 14

Heating effect caused by an electric circuit is written

Question # 15

The electric intensity at infinite distance from the point charge will be

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