MCQs Physics Chapter 12 – Class 12

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Al-Huda Science Academy has designed Class 12 MCQs Physics Chapter 12 Electrostatics for board, MdCat and ECAT preparation. These MCQs help students to prepare for their entry test papers.

Chapter 12 Electrostatics includes topics:

Electric field Intensity
Electric Flux
Gauss’s Law and Applications
Electrical Potential
Electrical Field as Potential Gradient
Electron Volt
Millikan’s Oil Drop Method
Capacitance
Energy Stored in capacitor

MCQs Physics Chapter 12 Electrostatics

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#1. In Millikan's Oil Drop Method, the charge on oil drop is:

None

no charge

positive

negative

#2. 1V=

All

1C/1J

1JC

1J/1C

#3. The formula for electric flux is:

Φ=L.A

Φ=E.A

Φ=B.A

Φ=0

#4. Dimensions of RC =

[ΩQ]

[T]

[TC]

[Ωs]

#5. Sharks can detect potential difference upto:

micro volt

mili volt

pico volt

nano volt

#6. 1eV =

1.6 × 10^-19 J

1.6 × 10^-25 J

6.25 × 10^-19 J

6.25 × 10^25 J

#7. Drag force F =

6πη/rv

1/6πηrv

6/πηrv

6πηrv

#8. In Millikan's Oil Drop Method, the charge on oil drop is due to:

friction

gravitational energy

work

electrical energy

#9. Єr has unit:

#10. Charging and Discharging of capacitor is a process:

off and on

in rest

continuous

in motion

#11. 1J =

1.6 × 10^-19 eV

1.6 × 10^17 eV

6.25 × 10^18 eV

6.25 × 10^-19 eV

#12. The unit of electric flux is:

C2/Nm

N2m/C

NC/m2

Nm2/C

#13. Which device records voltage between points on human skin generated by heart?

MRI

EEG

ECG

COVID

#14. Capacitance in vacuum is:

AЄo/d

Єod/A

AЄod

A/Єod

#15. Capacitor stores energy in the form of:

electric field lines

surface charges

magnetic field lines

All

#16. Formula of Gauss' law is:

Φ=A/Єo

Φ=m/Єo

Φ=Єo/q

Φ=q/Єo

#17. 1μF =

10^-9 F

10^-12 F

10^-3 F

10^-6 F

#18. Sharks have special organ to detect potential difference is:

Ampullae of Echinodermata

Ampulla of Rectum

Ampulla of Fallopian Tube

Ampullae of Lorenzini

#19. The branch of Physics deals with charges at rest is:

Electrostatics

Electromagnetism

Electrochemistry

Electrodynamics

#20. Gauss' law is applicable on:

Gaussian Surface

Hollow Surface

Spherical Surface

Rectangular Surface

#21. Gauss' law applied to find:

Electric field lines

Coulomb's law

Electric field Intensity

Electrical energy

#22. Surface charge density σ =

σA

σ/A

q/A

#23. Electric Field Intensity Works on:

Positive Units

Negative Units

All Units

Neutral Units

#24. Wind Shield Wipers works on:

Gauss' law

electric field intensity

charging and discharging

Ohm's law

#25. The Unit for electric field intensity is:

C/Ns

Nm/C

C/Nm

Ns/C

#26. Gaussian surface is:

Uniform and Imaginary

Non-Uniform and Imaginary

Non-Uniform and Real

Uniform and Real

#27. Using Gauss' law, value of E for hollow sphere is:

Double

σ/Єo

σ/2Єo

#28. Using Gauss' Law, value of E between two oppositely charged parallel plates is:

σ/Єo

2Єo/σ

σ/2Єo

1/2Єo

#29. In Millikan's Oil Drop Method, the magnitude of charge q =

dv/mg

mgv/d

mgd/v

mg/dv

#30. Time constant of charging and discharging of a capacitor t =

RxV

R/V

RxC

V/R

#31. Q=±ne is called:

Quantization of charge

Magnetization of charge

Amount of charge

Uniformity of charge

#32. Capacitor is used to store:

density

volts

potential difference

charges

#33. Using Gauss' law, value of E for infinite sheet is:

Double

σ/Єo

σ/2Єo

#34. Which device records voltage between points on human skin generated by brain?

EEG

MRI

ECG

COVID

#35. 1pF =

10^-3 F

10^-12 F

10^-9 F

10^-6 F

#36. Capacitance in medium is:

AЄo/d

A/ЄoЄrd

AЄoЄr/d

AЄo/Єrd

#37. Electric flux is a:

All

Scalar Quantity

Base Quantity

Vector Quantity

#38. In Millikan's Oil drop method, charge on oil droplet is integral multiple of:

1.6 × 10^19 C

1.6 × 10^-19 C

6.63 × 10^-34 C

6.673 × 10^-11 C

#39. Electric flux will be maximum if:

θ=270

θ=0

θ=180

θ=90

#40. 1Ω x 1F =

1eV

#41. Maximum charge deposits on plate of capacitor is:

64%

63%

62%

61%

#42. Electric flux will be minimum if:

θ=0

θ=90

θ=180

θ=270

#43. Capacitor stops:

Charges

D.C

Volts

A.C

#44. Gauss' law for unit positive charge is:

Φ=q/Єo

Φ=Єo

Φ=Єo/q

Φ=1/Єo

#45. Electric Field Intensity is:

Vector Quantity

Scalar Quantity

Base Quantity

All

Finish

MCQs Physics Chapter 12 Electrostatics

Results

#1. In Millikan's Oil Drop Method, the charge on oil drop is:

#2. 1V=

#3. The formula for electric flux is:

#4. Dimensions of RC =

#5. Sharks can detect potential difference upto:

#6. 1eV =

#7. Drag force F =

#8. In Millikan's Oil Drop Method, the charge on oil drop is due to:

#9. Єr has unit:

#10. Charging and Discharging of capacitor is a process:

#11. 1J =

#12. The unit of electric flux is:

#13. Which device records voltage between points on human skin generated by heart?

#14. Capacitance in vacuum is:

#15. Capacitor stores energy in the form of:

#16. Formula of Gauss' law is:

#17. 1μF =

#18. Sharks have special organ to detect potential difference is:

#19. The branch of Physics deals with charges at rest is:

#20. Gauss' law is applicable on:

#21. Gauss' law applied to find:

#22. Surface charge density σ =

#23. Electric Field Intensity Works on:

#24. Wind Shield Wipers works on:

#25. The Unit for electric field intensity is:

#26. Gaussian surface is:

#27. Using Gauss' law, value of E for hollow sphere is:

#28. Using Gauss' Law, value of E between two oppositely charged parallel plates is:

#29. In Millikan's Oil Drop Method, the magnitude of charge q =

#30. Time constant of charging and discharging of a capacitor t =

#31. Q=±ne is called:

#32. Capacitor is used to store:

#33. Using Gauss' law, value of E for infinite sheet is:

#34. Which device records voltage between points on human skin generated by brain?

#35. 1pF =

#36. Capacitance in medium is:

#37. Electric flux is a:

#38. In Millikan's Oil drop method, charge on oil droplet is integral multiple of:

#39. Electric flux will be maximum if:

#40. 1Ω x 1F =

#41. Maximum charge deposits on plate of capacitor is:

#42. Electric flux will be minimum if:

#43. Capacitor stops:

#44. Gauss' law for unit positive charge is:

#45. Electric Field Intensity is:

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