Electrostatics MCQ Quiz & Online Test 2023

1. An electric dipole is placed at an angle of 30° with an electric field intensity 2 × 105 N/C. It experiences a torque equal to 4 N m. The charge on the dipole, if the dipole length is 2 cm, is

5 mC
8 mC
7 μC
2 mC

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2. Three concentric metallic spherical shells of radii R, 2R, 3R, are given charges Q1, Q2, Q3, respectively. It is found that the surface charge densities on the outer surfaces of the shells are equal. Then, the ratio of the charges given to the shells, Q1 : Q2 : Q3, is

1 : 4 : 9
1 : 2 : 3
1 : 3 : 5
1 : 8 : 18

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3. Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle of 30° with each other. When suspended in a liquid of density 0.8 g cm–3, the angle remains the same. If density of the material of the sphere is 1.6 g cm–3, the dielectric constant of the liquid is

1
2
3
4

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4. we use ..................to relieve discomfort of allergy sufferers in homes.

vacuum cleaner
wind cleaner
electrostatic air cleaner
none of the above

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5. Value of k in coulomb's law depends upon -

medium between two charges
magnitude of charges
distance between charges
both A and B

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6. Value of k in coulomb's law depends upon -

medium between two charges
magnitude of charges
distance between charges
both A and B

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7. Value of k in coulomb's law depends upon -

medium between two charges
magnitude of charges
distance between charges
both A and B

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8. Coulomb is equal to charge of -

5.25×1018
6.25×1018
8.25×1018
7.25×1018

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9. Selenium becomes a conductor in light so it behaves like -

Semiconductor
Light emitting diode
Photodiode
Capacitor

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10. Property of material due to which it attracts or repels other objects is

charge
friction
velocity
current

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11. Charge on capacitor plates is directly proportional to -

electric field intensity
current
potential difference
resistance

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12. What happens when we rub a glass rod with a silk cloth ?

glass rod acquires positive charge while silk acquires negative charges
glass rod acquires negative charge while silk acquires positive charge
both glass rod and silk acquire negative charge
both glass rod and silk acquire positive charge

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13. Thunderclouds are charged by friction between -

layers of clouds
clouds and air
water molecules and air
layers of air

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14. If the distance between the two point charges become half then force between them becomes

double
four times
remains same
half

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15. Charge on capacitor plates is directly proportional to

current
potential difference
electric field intensity
resistance

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16. In equation Q=CV, C is constant of proportionality called capacitor's

power
heat
capacitance
electric intensity

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17. In equation Q=CV, C is constant of proportionality called capacitor's

power
heat
capacitance
electric intensity

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18. An Electric field can deflect _______________________ ?

Neutrons
X-rays
α - rays
None of These

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19. The Electric line of force are ________________ ?

Physically existing everywhere
imaginary
physically existing near the charges
depends upon case

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20. The Value of the capacitance depends upon the__________________ ?

Thickness of the capacitor plates
geometry of the capacitor
density of the capacitor plates
voltage applied

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21. Particles With Opposite Charges

attract
rebel
repel
attack

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22. Electroscope Can Be Charged By

convection
radiation
conduction
all of above

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23. The SI Unit Of Electric Potential Is

volts
ohm
coulomb
newton

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24. Dielectric Strength Of Medium

increases with rise in temperature
increases with moisture content
is same for all insulating materials
none of the above

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25. The Dissipation Factor Of A Good Dielectric Is Of The Order Of

0.0002
0.002
0.02
0.2

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26. The Electric Field At A Point Situated At A Distance D From Straight Charged Conductor Is

proportional to d
inversely proportional to d
inversely proportional to d
none of the above

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27. Paper Capacitor And Mica Capacitor Are The Examples Of

ceramic capacitors
fixed capacitors
parallel plate capacitors
electrolytic capacitors

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28. Which Of The Following Is Not A Good Insulator?

Copper
Glass
rubber
wool

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29. The Reason A Charged Balloon Will Stick To A Wall Is That

the charge is slightly sticky and acts like glue
electrons transfer back and forth between the wall and the balloon
induced opposite charges in the wall are closer than other wall charges
balloon material simply sticks to walls

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30. The Common Hydrogen Atom Consists Of

one proton
one proton and one electron
two protons, one neutron, and two electrons
one neutron and one electron

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31. The Accumulation Of Excess Electric Charge On An Object Is Called

Static electricity
Electric discharge
Resistance
Circuit

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32. Which Of The Following Is NOT A Subatomic Particle?

Proton
Neutron
Electron
Positron

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33. An Electrolytic Capacitor Is Generally Made To Provide

low capacitance
fixed capacitance
variable capacitance
large value of capacitance

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34. What Charge Does A Proton Have?

negative (-)
positive (+)
neutral or no charge (0)

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35. What Is The Symbol For Force?

F
f
N
n

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Electrostatics MCQ Quiz

Last Updated: Feb 10, 2023,

Posted in Interview Questions,

35 Questions

Take Electrostatics Quiz To test your Knowledge

1. An electric dipole is placed at an angle of 30° with an electric field intensity 2 × 105 N/C. It experiences a torque equal to 4 N m. The charge on the dipole, if the dipole length is 2 cm, is

2. Three concentric metallic spherical shells of radii R, 2R, 3R, are given charges Q1, Q2, Q3, respectively. It is found that the surface charge densities on the outer surfaces of the shells are equal. Then, the ratio of the charges given to the shells, Q1 : Q2 : Q3, is

4. we use ..................to relieve discomfort of allergy sufferers in homes.

5. Value of k in coulomb's law depends upon -

6. Value of k in coulomb's law depends upon -

7. Value of k in coulomb's law depends upon -

8. Coulomb is equal to charge of -

9. Selenium becomes a conductor in light so it behaves like -

10. Property of material due to which it attracts or repels other objects is

11. Charge on capacitor plates is directly proportional to -

12. What happens when we rub a glass rod with a silk cloth ?

13. Thunderclouds are charged by friction between -

14. If the distance between the two point charges become half then force between them becomes

15. Charge on capacitor plates is directly proportional to

16. In equation Q=CV, C is constant of proportionality called capacitor's

17. In equation Q=CV, C is constant of proportionality called capacitor's

18. An Electric field can deflect _______________________ ?

19. The Electric line of force are ________________ ?

20. The Value of the capacitance depends upon the__________________ ?

21. Particles With Opposite Charges

22. Electroscope Can Be Charged By

23. The SI Unit Of Electric Potential Is

24. Dielectric Strength Of Medium

25. The Dissipation Factor Of A Good Dielectric Is Of The Order Of

26. The Electric Field At A Point Situated At A Distance D From Straight Charged Conductor Is

27. Paper Capacitor And Mica Capacitor Are The Examples Of

28. Which Of The Following Is Not A Good Insulator?

29. The Reason A Charged Balloon Will Stick To A Wall Is That

30. The Common Hydrogen Atom Consists Of

31. The Accumulation Of Excess Electric Charge On An Object Is Called

32. Which Of The Following Is NOT A Subatomic Particle?

33. An Electrolytic Capacitor Is Generally Made To Provide

34. What Charge Does A Proton Have?

35. What Is The Symbol For Force?

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Electrostatics MCQ Quiz

Last Updated: Feb 10, 2023,

Posted in Interview Questions,

35 Questions

Take Electrostatics Quiz To test your Knowledge

1. An electric dipole is placed at an angle of 30° with an electric field intensity 2 × 105 N/C. It experiences a torque equal to 4 N m. The charge on the dipole, if the dipole length is 2 cm, is

2. Three concentric metallic spherical shells of radii R, 2R, 3R, are given charges Q1, Q2, Q3, respectively. It is found that the surface charge densities on the outer surfaces of the shells are equal. Then, the ratio of the charges given to the shells, Q1 : Q2 : Q3, is

4. we use ..................to relieve discomfort of allergy sufferers in homes.

5. Value of k in coulomb's law depends upon -

6. Value of k in coulomb's law depends upon -

7. Value of k in coulomb's law depends upon -

8. Coulomb is equal to charge of -

9. Selenium becomes a conductor in light so it behaves like -

10. Property of material due to which it attracts or repels other objects is

11. Charge on capacitor plates is directly proportional to -

12. What happens when we rub a glass rod with a silk cloth ?

13. Thunderclouds are charged by friction between -

14. If the distance between the two point charges become half then force between them becomes

15. Charge on capacitor plates is directly proportional to

16. In equation Q=CV, C is constant of proportionality called capacitor's

17. In equation Q=CV, C is constant of proportionality called capacitor's

18. An Electric field can deflect _______________________ ?

19. The Electric line of force are ________________ ?

20. The Value of the capacitance depends upon the__________________ ?

21. Particles With Opposite Charges

22. Electroscope Can Be Charged By

23. The SI Unit Of Electric Potential Is

24. Dielectric Strength Of Medium

25. The Dissipation Factor Of A Good Dielectric Is Of The Order Of

26. The Electric Field At A Point Situated At A Distance D From Straight Charged Conductor Is

27. Paper Capacitor And Mica Capacitor Are The Examples Of

28. Which Of The Following Is Not A Good Insulator?

29. The Reason A Charged Balloon Will Stick To A Wall Is That

30. The Common Hydrogen Atom Consists Of

31. The Accumulation Of Excess Electric Charge On An Object Is Called

32. Which Of The Following Is NOT A Subatomic Particle?

33. An Electrolytic Capacitor Is Generally Made To Provide

34. What Charge Does A Proton Have?

35. What Is The Symbol For Force?

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