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PHYSICS MCQs 2nd Year Chapter No.1 ELECTROSTATICS Test No.2

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PHYSICS 
Chapter Name : ELECTROSTATICS
Chapter No. 01  [Test No.2]
2st Year
Multiple Choice Questions

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2nd Year PHYSICS notes and MCQs are according to latest Paper Pattern of Punjab Boards, All Exercises in Textbooks are solved to ensure the Quality Education to Medical College Students. All MCQs are according to UHS (University of Health Sciences) Lahore approved Syllabus.

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Book Name :  PHYSICS
Chapter No. 01 (Test No.2)
Chapter Name : ELECTROSTATICS 
Total MCQ from Text Book :  96
Book Version  :
2022

Published By : Punjab Text Book Board Lahore
Approved By : Govt of the Punjab and Federal Ministry for Education
Test Type : MCQ’s
Exam conduct By : Inter Boards of Sindh, KPK, Balochistan, AJK, Gilgit Baltistan, Punjab & Federal
Class / Grade  : 12 ( F.Sc. Intermediate)
Total Marks : 96
Total Time :   96 minutes
5

GRADE 12 - PHYSICS CHAPTER NO.1 ELECTROSTATICS Test No.2

GRADE 12 - PHYSICS CHAPTER NO.1 ELECTROSTATICS Test No.2

1 / 96

A Particle carrying a charge of 2e falls through a potential difference of 3V. The energy acquired by it will be:

2 / 96

Time constant is defined as the time during which a capacitor charges to_____ of its equilibrium value.

3 / 96

The magnitude of an electric field E, such that an electron placed in it would be experience an electric force equal to its weight, is given by

4 / 96

One Joule is equal to

5 / 96

The electric field lines are closer where the field is:

6 / 96

When 1014 electron are removed from a neutral metal sphere then which of the following is the charge on sphere?

7 / 96

In a charged capacitor, the energy resides in:

8 / 96

Capacitance of a Capacitor in Vacuum is given by

9 / 96

A charged conductor has charge on its:

10 / 96

A 1?F capacitor is subjected to 4000V potential difference the energy stored in capacitor is:

11 / 96

The Electrostatic force between two charges is 42 N. If we place a dielectric of er.=2.1 between the charges, then the force become equal to:

12 / 96

The force between two similar unit charges placed one meter apart in air is:

13 / 96

The number of electrons in one coulomb charge is equal to

14 / 96

If the separation between the plates of a capacitor is doubled then its capacitance become

15 / 96

Two charges q1 and q2 are placed in vacuum at distance d and force between them is F. If a mentioned of relative permittivity 4 is introduced between them then new force will be:

16 / 96

The constant of proportionality "K" depend upon:

17 / 96

Charge on electron is:

18 / 96

The energy stored in the capacitor is:

19 / 96

Which one of the following relations for the energy stored in capacitor is not correct?

20 / 96

Two equal and opposite equal charges separated by small distance are said to make a :

21 / 96

If 2?F and 4?F capacitors are connected in parallel, the resultant capacitance is

22 / 96

1 ohm x 1 farad is equal to

23 / 96

SI unit of permittivity of free space are:

24 / 96

The capacitance of a capacitor can be increased by

25 / 96

Electric field and electric potential inside hollow charged conducting sphere are respectively.

26 / 96

If the medium between plates of a capacitor be air or vacuum, then the capacitance of capacitor is:

27 / 96

Which one of the following can be taken as measure of electric field intensity:

28 / 96

Two copper spheres of same radii one hollow and other solid are charged to the same potential then.

29 / 96

Doubling the distance between the plates of a capacitor, the capacitance:

30 / 96

Two point charges are +2C and +6C repel each other with a force of 12N. If a charge of -4C is given to each of these charges, the force now is

31 / 96

If f1 and 2 are forces acting on ?-particle and electron respectively, when

32 / 96

A capacitor is charged to store energy U. the charging battery is disconnected. An identical capacitor is now connected in parallel to the first capacitor. The energy in each capacitor is

33 / 96

The unit of Electric intensity other than NC-1 is:

34 / 96

For computation of electric flux, the surface area should be

35 / 96

The product of resistance and capacitance is

36 / 96

Photocopier and inkjet printer are the application of:

37 / 96

For computation of electric flux, the surface area should be

38 / 96

Due to polarization, electric field E

39 / 96

An ECG records the_______between points on human skin generated by electric process in the heart:

40 / 96

When dielectric is placed between the plates of capacitor, The value of E between the plates

41 / 96

If a metal plate is placed between two point charges then electrostatic force between them.

42 / 96

Three capacitor of 4?F each are to be connected in such a way that the net capacitance is 6?F. Then

43 / 96

Selenium is:

44 / 96

SI unit of electric flux is:

45 / 96

Selenium is a:

46 / 96

The concept of electric field theory was introduced by

47 / 96

The relation "-?V/?r" represents

48 / 96

The product of resistance and capacitance is called

49 / 96

A metallic ball having charge 10-8C moves from a point A at potential 600V to a point B at zero potential. Which of the following is the change in its K.E.

50 / 96

The electron volt is the unit of

51 / 96

When air is replaced by a dielectric medium of relative permittivity ?r, the maximum capacity of the condenser_____

52 / 96

The product of resistance and capacitance is equal to

53 / 96

The electrostatic force of repulsion between two electrons at a distance 1m is:

54 / 96

Two charges 1 ?c and 5?c separated by 20cm, the ratio of electrical forces acting on them will be:

55 / 96

4 x 1020 eV energy is required to move a charge of 0.25 C from A to B the potential difference between A and B is

56 / 96

If a charged body is moved against the electric field, it will gain:

57 / 96

The value of ?o permittivity for free space is:

58 / 96

Due to polarization of the dielectric, the electric intensity between the plates of a capacitor:

59 / 96

An alpha particle is accelerated through potential difference of 106V.Which of the following is its K.E?

60 / 96

If time constant in RC circuit is small, the capacitor is charged or discharged

61 / 96

The electric flux through closed surface depends upon.

62 / 96

A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates. Which of the following quantity remain unchanged?

63 / 96

The energy stored in a charged capacitor is given by:

64 / 96

The work done in bringing a unit positive charge from infinity to that point in an electric field is called:

65 / 96

Charge on an electron is:

66 / 96

Due to polarization of the dielectric, the capacitance of the capacitor:

67 / 96

Capacitance of parallel plate capacitor is:

68 / 96

The electric field created by positive charge is:

69 / 96

If a charged capacitor is connected to earth its charge.

70 / 96

Capacitance of a capacitor does not depend upon:

71 / 96

The number of electrons in one coulomb charge is equal to:

72 / 96

Dielectric constant ?r can be defined as

73 / 96

The value of Coulomb's constant (K) in SI units is

74 / 96

If an insulating material called dielectric is introduced between the plates, the capacitance of capacitor is:

75 / 96

Selenium is a:

76 / 96

If 2?F and 4?F capacitors are connected in series, the resultant capacitance is

77 / 96

If potential difference across two plates of a parallel plates capacitor is doubled then the energy stored in it will be

78 / 96

A charge Q is enclosed in a dielectric of strength K the maximum number of electric lines of force are

79 / 96

If a dielectric is placed between the plates of a capacitor, its capacitance

80 / 96

Special organ called Ampullae of lorenzini that are very sensitive to electric field are found in

81 / 96

A parallel plate capacitor with oil between the plate(?r = 2) has a capacitance "C". If oil is removed then capacitance of capacitor becomes.

82 / 96

The product of resistance and capacitance is

83 / 96

Which material sheet should be placed between the plates of a parallel plate capacitor in order to increase its capacitance?

84 / 96

Two opposite point charge of same magnitude separated by distance 2d, electric potential mid-way between them is:

85 / 96

Electron volt is the unit of

86 / 96

Which of the following is not the energy stored between the plates of a condenser?

87 / 96

The toner of the printer is given

88 / 96

One electron volt is equal to

89 / 96

Electric intensity inside the hollow sphere is:

90 / 96

If the potential difference across the two plates of a parallel plate capacitor is double then its energy stored in it will be:

91 / 96

The force between two point charges separated by air is 4 N. When separated by a medium of relative permittivity 2, the force between them becomes;

92 / 96

When electron is brought near a - vely charged plate then its electrical P.E.

93 / 96

Which of the following is the dielectric constant of metals?

94 / 96

Photocopier and inkjet printer are the application of:

95 / 96

A charge Q is divided into two parts q1 and q2. The maximum coulomb repulsion between the two parts is obtained when ratio q1/q2 is.

96 / 96

Relative permittivity for air is:

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