ECAT Pre General Science Physics Chapter 12 MCQ Test With Answer

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

Try The MCQ's Test For 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

The earth's potential is taken as

Question # 2

In a voltmeter the conduction takes place due to

Question # 3

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

Question # 4

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

Question # 5

Two conductors having the same type of charges are connected by a conducting wire. There would not be any amount of charges on them if

Question # 6

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

Question # 7

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

Question # 8

The unit of resistance is

Question # 9

A current of 1.6 A is passed through a solution of CuSO4. How many Cu2+ions are liberated in one minute?

Question # 10

Cause of heat production in a current carrying conductor is

Question # 11

Which one of the following has larger value of relative permitivity Erat room temperature?

Question # 12

The value of electrical constant of proportionality k is

Question # 13

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

Question # 14

At any point on the right bisector of the line joining two equal and opposite charges

Question # 15

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

Question # 16

If 2.2 kilowatt power is transmitted through a 10 ohm line at 22000 volt, the power loss in the form of heat will be

Question # 17

Electron volt is the unit of.

Question # 18

The SI unit of permitivity is

Question # 19

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

Question # 20

If the distance between the plates of a parallel plate condenser of capacity 10μF is doubled then new capacity will be

Question # 21

Electric flux is defined by the relation

Question # 22

A capacitor of capacity 1μF is charged to 1 KV. The energy stored in J

Question # 23

Physicist George Simon ohm was a

Question # 24

If 2.2 kilowatt power is transmitted through 1 10 ohm line at 22000 volt, the power loss in the form of heat will be

Question # 25

The resistivity of a substance depends upon the

Question # 26

The resistance of a conductor does not depend on its

Question # 27

The liquid which conduct current is known as

Question # 28

A ten ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts

Question # 29

The relation V = IR represents

Question # 30

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

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ECAT Physics Chapter 12 Important MCQ's

Sr.# Question Answer
1 Ohm is the unit of
A. current
B. capacitance
C. energy
D. resistance
2 Two conductors having the same type of charges are connected by a conducting wire. There would not be any amount of charges on them if
A. They have the same potential
B. They have the same amount of charge
C. They have the same capacity
D. They have the same shape
3 The ohm's is defined as
A. 1 ampere / 1 volts
B. 1 coulomb / 1 volt
C. 1 volt / 1 ampere
D. 1 volt / 1 coulomb
4 The SI unit of electric field intensity is
A. CN-1
B. NC-1or Vm-1
C. JC-1
D. AV-1
5 A capacitor is charged with a battery and then it is disconnected. A slab of dielectric is now inserted between the plates, then
A. The charge in the plates reduces and potential difference increase
B. Potential difference between the plates increase, stored energy decreases and charge remains the same
C. Potential difference between the plates decreases and charge remains unchanged
D. None of the above
6 The energy stored in a charge capacitor
A. 1/2CV2
B. 1/2C2V
C. 1/2C/V2
D. None of these
7 The relation V = IR represents
A. Ampere law
B. Faraday's law
C. Ohm's law
D. Len's law
8 Heating effect caused by an electric circuit is written
A. H = I2Rt
B. H = I2R
C. H = IR2t
D. H = IR2
9 Which one of the following has larger value of relative permitivity Erat room temperature?
A. Vaccum
B. Air
C. Glass
D. Water
10 The charge carriers in electrolyte are positive and negative
A. protons
B. electrons
C. ions
D. none of these

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