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

  • Total Questions30

  • Time Allowed30

Start Test Download PDF

ECAT Pre General Science Physics Chapter 12 Electrostatics

00:00
Question # 1

Potentiometer is more sensitive than voltmeter, because

Question # 2

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 # 3

The charge carriers in gases are

Question # 4

Physicist George Simon ohm was a

Question # 5

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

Question # 6

The value of electrical constant of proportionality k is

Question # 7

If electric and gravitational force on an electron in a uniform electric field will be

Question # 8

Heating effect caused by an electric circuit is written

Question # 9

The SI unit of capacitance is

Question # 10

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

Question # 11

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 # 12

The SI unit of electric field intensity is

Question # 13

Electric flux is defined by the relation

Question # 14

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 # 15

The force between two chares 0.06 m apart is 5 N. If each charge is moved towards the other by 0.01 m, then the force between them will become

Question # 16

If an electron of charge 'e' is accelerated through a potential difference V., it will acquire energy

Question # 17

The unit of intensity of electric field is

Question # 18

The resistivity of a substance depends upon the

Question # 19

Two point charge +3μC and +8μC repel each other with a force of 40 N. If a charge of -5μC is added to each of them, then the force between then will become

Question # 20

The charge per unit time through any cross-section of a conductor is called

Question # 21

One moving a charge of 20 coulombs by 2 cm, 2 J of work is done, then the potential difference between the points is

Question # 22

A charge Q is divided into two parts q and Q - q and separated by a distance R. The force of repulsion between them will be maximum when

Question # 23

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 # 24

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

Question # 25

Resistance of a conductor depends upon

Question # 26

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

Question # 27

The electric lines of force are

Question # 28

The SI unit of permitivity is

Question # 29

Cause of heat production in a current carrying conductor is

Question # 30

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

Submit

Prepare Complete Set Wise ECAT Pre General Science Physics Chapter 12 Electrostatics MCQs Online With Answers


Topic Test

00:00
Submit

Top Scorers Of ECAT Pre General Science Physics Chapter 12 Electrostatics MCQ`s Test

  • V
    Viral Edits 27 - May - 2024 13 Min 50 Sec 65/120
  • T
    Tamseela Ehsan 04 - Sep - 2023 13 Min 56 Sec 50/120
  • K
    Khurram 29 - Jan - 2019 16 Min 26 Sec 50/120
  • W
    Waleed Ahmed 25 - Feb - 2023 22 Min 39 Sec 45/120
  • I
    Inzmam Rajper 16 - Jun - 2022 10 Min 50 Sec 40/120
  • S
    Saba 18 - Feb - 2019 15 Min 57 Sec 30/120
  • A
    Arsalan Ahmad 16 - Jul - 2024 11 Min 36 Sec 20/120
  • A
    Ali 31 - May - 2023 07 Min 17 Sec 10/120
  • A
    Abc 14 - Aug - 2021 00 Min 29 Sec 0/120
  • A
    Aulakh Brand 06 - Feb - 2022 03 Min 17 Sec 0/120
  • A
    Abdul Jabbar 17 - Apr - 2018 03 Min 18 Sec 0/120

ECAT Physics Chapter 12 Important MCQ's

Sr.# Question Answer
1 If electric and gravitational force on an electron in a uniform electric field will be
A. E=mg/q
B. E=q/mg
C. E=,g/q
D. E=qg/m
2 In a Milikian's oil drop experiment the charge on an oil drop is calculated to be 6.35 x 10-19C. The number of excess electrons on the drop is
A. 3.9
B. 4
C. 4.2
D. 6
3 Electric generators which convert mechanical energy into
A. solar energy
B. thermal energy
C. kinetic energy
D. electrical energy
4 If we plot graph between potential difference (V) and current (I) obeying ohm's law, it will give us
A. parabola
B. straight line
C. hyper bola
D. ellipse
5 The SI unit of conductivity is
A. ohm-m
B. ohm-1m-1
C. ohm-m-1
D. ohm-1m
6 One moving a charge of 20 coulombs by 2 cm, 2 J of work is done, then the potential difference between the points is
A. 0.1 V
B. 8 V
C. 2 V
D. 0.5 V
7 Resistance of a conductor is increased, the currant will
A. Decrease
B. Increase
C. Remain the same
D. None of these
8 The energy stored in a charge capacitor
A. 1/2CV2
B. 1/2C2V
C. 1/2C/V2
D. None of these
9 In a charged capacitor the energy is stored in
A. Both in positive and negative charges
B. Positive charges
C. The edges of the capacitor plates
D. The electric field between the plates
10 A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates. The quantity that remains unchanged is
A. Charge Q
B. Potential V
C. Capacity
D. Energy U

Test Questions

Is this page helpful?