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

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ECAT General Science Physics Ch. 12 Test
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Online MCQ`s Test For Chapter 12 "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

Which of the following does not obey ohm's law?

Question # 2

A closed surface contains two equal and opposite charges. The net electric flux from the surface will be

Question # 3

The unit of resistance is

Question # 4

The minimum resistance that can be obtained by connecting 5 resistance of 1/4Ωeach is

Question # 5

Force acting upon a charged particle kept between the plates of a charged condenser if F. IF one of the plates of the condenser is removed, force acting on the same will become

Question # 6

The excess (equal in number) of electrons that must be placed on each of two small spheres spaced 3 cm apart, with force of repulsion between the spheres to be 10-19N, is

Question # 7

The capacity of a parallel plat capacitor depends on the

Question # 8

A medium of dielectric constant 'K' is introduced between the plates of parallel plate condenser. As a result its capcitance

Question # 9

Some charge is being given to a conductor. Then its potential

Question # 10

Resistance of a conductor depends upon

Question # 11

A wire is bent into a ring of radius R is given a charge q. The magnitude of the electrical field at the centre of the ring is

Question # 12

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

Question # 13

In a building, there are 15 bulbs of 40 watts, 5 bulbs of 100 watts, 5 fans of 80 watts and a heater of 1 kilowatt. The voltage of the electric main is 220 volts. The minimum efficiency of the main fuse of the building will be

Question # 14

Which one of the following is the unit of electric field intensity

Question # 15

The electric flux is linked with a surface will be maximum when

Question # 16

The nature of capacity of electrostatic capacitor depends on

Question # 17

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

Question # 18

The value of electrical constant of proportionality k is

Question # 19

A conducting wire is drawn to double its length. Final resistivity of the material will be

Question # 20

The concept of field theory was put forward by

Question # 21

The substances whose resistance decreases with the increase in temperature these substances have coefficient of

Question # 22

One joule is equal to

Question # 23

Surface density of charge is defined as

Question # 24

The unit of conductance is

Question # 25

Which of the following represents an electric current?

Question # 26

The graphical representation of ohm's law is

Question # 27

Capacitance of two or more capacitors

Question # 28

Cause of heat production in a current carrying conductor is

Question # 29

The SI unit of current is

Question # 30

The speed of randomly moving electrons depends upon

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