ECAT Pre General Science Physics Chapter 12 Electrostatics

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  • Chapter NameCh 12 - Electrostatics

ECAT Pre General Science Physics Chapter 12 Electrostatics

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ECAT Pre General Science Physics Chapter 12 Electrostatics

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Question # 1

Magnetic effect at a point caused due to flow a current depend upon the

Question # 2

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

Question # 3

If the length of the conductor is double and its cross sectional area is halved, its conductance will

Question # 4

Coulomb force, when any material medium is placed between two charges

Question # 5

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

Question # 6

The SI unit of current is

Question # 7

If the two charges in Coulomb's law have double distance between them, then electric force

Question # 8

The capacitance of a parallel plate capacitor depends upon

Question # 9

The SI unit of electric flux is

Question # 10

Which of the following represents an electric current?

Question # 11

Thermocouple is an arrangement of two different metals

Question # 12

Solar cell converts sunlight directly into

Question # 13

The resistance of a conductor does not depend on its

Question # 14

The relation between the charge Q of a parallel plate capacitor and the P.D between its plates is

Question # 15

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

Question # 16

Capacitance of two or more capacitors

Question # 17

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

Question # 18

Ohm is the unit of

Question # 19

Ohm established a relation between

Question # 20

Electron volt is the unit of

Question # 21

The unit of resistivity is

Question # 22

The nature of capacity of electrostatic capacitor depends on

Question # 23

Electric flux is defined by the relation

Question # 24

The unit of resistance is

Question # 25

The liquid which conduct current is known as

Question # 26

In Pakistan electricity is supplied for domestic use at 220 V, it is supplied at 110 V in USA. If the resistance of a 60 W bulb for use in Pakistan is R, the resistance of a 60 W bulb for use in USA will be

Question # 27

The electric intensity outside the two oppositely charged parallel metal plates is

Question # 28

Free electrons are

Question # 29

The conductivity of a superconductor is

Question # 30

Electron volt is the unit of.

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