ECAT Pre General Science Physics Chapter 12 MCQ Test With Answer for Physics chapter 12 (Electrostatics)

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MCQ's Test For ECAT Pre General Science Physics Chapter 12 Electrostatics Online Test

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ECAT Pre General Science Physics Chapter 12 Electrostatics Online Test

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Question # 1

The SI unit of current is

Question # 2

The relation between charge 'Q' and current 'I' is given by

Question # 3

The colour sequence in a carbon resistor in red, brown, orange and silver. The resistance of the resistor is

Question # 4

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

Question # 5

Heating effect caused by an electric circuit is written

Question # 6

The SI unit of electric field intensity is

Question # 7

The earth's potential is taken as

Question # 8

If we plot graph between potential difference (V) and current (I) obeying ohm's law, it will give us

Question # 9

When an electron is accelerated through a P.D. of an one volt, it will acquire energy equal to

Question # 10

The dot product of electric field intensity E and vector area A is called

Question # 11

If we increase the distance between two plates of the capacitor, the capacitance will

Question # 12

A wire of radius r has resistance R. If it is stretched to a wire of r/2 radius, then the resistance becomes

Question # 13

Cause of heat production in a current carrying conductor is

Question # 14

If two bulbs one of 60 W and other of 100 W are connected in parallel, then which one of the following will flow more?

Question # 15

A metal plate of thickness half the separation between the capacitor plates of capacitance C is inserted. The new capacitance is

Question # 16

A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1 KV, its kinetic energy will be

Question # 17

A certain charge liberates 0.8 g of oxygen. The same charge will liberate. how many g of silver?

Question # 18

Resistance of a conductor depends upon

Question # 19

The nature of capacity of electrostatic capacitor depends on

Question # 20

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

Question # 21

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

Question # 22

The concept of field theory was put forward by

Question # 23

One coulomb of charge is created by

Question # 24

Coulomb's force between two point charges depends upon

Question # 25

A 50 volt battery is connected across 10 ohm resistor. The current is 4.5 A. The internal resistance of the battery is

Question # 26

If a charged spherical conductor of radius 10 cm has potential V at a point distance 5 cm from its centre, then the potential at a point distance 15 cm from the centre will be

Question # 27

An electric charge at rest is

Question # 28

Potentiometer is more sensitive than voltmeter, because

Question # 29

In case of a parallel plate capacitor if the plate separation is doubled and plate area is halved, the capacitance becomes

Question # 30

The conductivity of a superconductor is

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