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

The concept of field theory was put forward by

Question # 2

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 # 3

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 # 4

The charge carriers in gases are

Question # 5

In RC series circuit the time during which the capacitor acquires 0.63 times the equilibrium charge is called

Question # 6

Resistance of a conductor depends upon

Question # 7

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 # 8

Electron volt is the unit of

Question # 9

A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor

Question # 10

The ratio of the gravitational force Fgto the electrostatic force Febetween two electrons at the same distance apart is approximately

Question # 11

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

Question # 12

The charge carriers in electrolyte are positive and negative

Question # 13

The liquid which conduct current is known as

Question # 14

A hollow insulated conduction sphere is given a positive charge of 10μC. What will be the electric field at the centre of the sphere if its radius is 2 meters?

Question # 15

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 # 16

The unit of intensity of electric field is

Question # 17

If a 40 watt light bulb burns for 2 hours. how much heat is generated

Question # 18

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

Question # 19

The statement "the electric force of repulsion or attraction between two point charges is directly proportional to the product of the charges and inversely proportional to square of the distance between them" refer to

Question # 20

The powers of tow electric bulbs are 100 W and 200 W. Both of them are joined with 220 V mains. The ratio of resistances of their filaments will be

Question # 21

Resistance of a conductor is increased, the currant will

Question # 22

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

Question # 23

The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10-15 is

Question # 24

Electric potential of earth is taken to be zero because the earth is good

Question # 25

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

Question # 26

The SI unit of permitivity is

Question # 27

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

Question # 28

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

Question # 29

Three resistance 500,500 and 50 ohms are connected in series across 555 volts mains. The current flowing through them will be

Question # 30

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

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 Some charge is being given to a conductor. Then its potential
A. Is maximum at surface
B. Is maximum at centre
C. Is remain same throughout the conductor
D. Is maximum somewhere between surface and centre
2 The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10-15 is
A. 9 x 105V
B. 9 V
C. 8 x 106V
D. 80 V
3 The relation between charge 'Q' and current 'I' is given by
A. Q = I/t
B. Q = It
C. Q = I2t
D. Q = I2/t
4 A medium of dielectric constant 'K' is introduced between the plates of parallel plate condenser. As a result its capcitance
A. Increase k time
B. Decreases k times
C. Decreases 1/K times
D. Remains unchanged
5 A piece of fuse wire melts when a current of 15 ampere flows through it. With this current. If it dissipates 22.5 W, the resistance of fuse wire will be
A. Zero
B. 10Ω
C. 1Ω
D. 0.10Ω
6 A charge of 0.1 c accelerated through a potential difference of 1000V acquires kinetic energy
A. 200 J
B. 100 J
C. 1000 J
D. 400 J
7 The powers of tow electric bulbs are 100 W and 200 W. Both of them are joined with 220 V mains. The ratio of resistances of their filaments will be
A. 1 : 2
B. 2 : 1
C. 1 : 4
D. 4 : 1
8 An electron of charge e coulomb passes through a potential difference of V volts its energy in joules will be
A. V/e
B. eV
C. e/V
D. V
9 One coulomb of charge is created by
A. 10 electrons
B. 1.6 x 10-19electrons
C. 6.25 x 1018electrons
D. 6.25 x 1021electrons
10 A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor
A. Increases
B. Decreases
C. Remain unchanged
D. Becomes infinite

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!