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PHYSICS – 2nd Year
Chapter No. 3 / 14  [ Test No.1 ]
Multiple Choice Questions
Note : All MCQ’s selected in this test are from OLD F.Sc. board , UHS and PMC(Pakistan Medical Commission) Islamabad Papers.

Book Name :  PHYSICS
Chapter No.  3 / 14 (Test No. 1)
Total MCQ from Text Book :  96
Book Version  :

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




1 / 96

Two parallel straight wires carrying currents in same direction

2 / 96

In western type galvanometer, the jeweled bearings are used produced

3 / 96

Sensitivity of Galvanometer can he increased by increasing

4 / 96

The magnitude of the deflecting torque on a current carrying coil in

5 / 96

An ammeter only can be used in________ in a circuit

6 / 96

The e/m of an electron can be expressed as

7 / 96

A 0.50 T field over an area of 2 (m2) which lies at an angle of 30° to the field, the magnetic flux is

8 / 96

One tesla is equal to

9 / 96

In velocity selector a charged particle will go undeflecting if V is equal to

10 / 96

Which of the following particle moving in the magnetic field cannot be deflected

11 / 96

The magnetic force experienced by a charge particle is zero, when charge particle is projected at

12 / 96

Which one of the following field is suitable choice for circular trajector of a charged partical

13 / 96

A current carrying conductor experiences maximum magnetic force in a uniform magnetic field when it-is placed

14 / 96

Magnetic field inside a long solenoid is

15 / 96

The current passing through coil of the galvanometer is

16 / 96

Magnetic flux per unit area perpendicular to magnetic field is called

17 / 96

Magnetic flux density due to current carrying conductor can be determined by

18 / 96

Charge to mass ratio (e/m) of a proton is_________ that of electron

19 / 96

The e/m of an electron moving in a circular path in a magnetic field is given by

20 / 96

The unit of magnetic flux is

21 / 96

Total number of lines of magnetic induction passing through any surface placed perpendicular to the field is called:

22 / 96

The magnetic force is simply a

23 / 96

Magnetic field along the axis of a solenoid with N turns carrying a current I is given by

24 / 96

Ampere's law can be used to calculate the_______field

25 / 96

In a straight current carrying conductor, the direction of magnetic field can be found by

26 / 96

A 5 meter wire carrying a current of 2 A is at right angles to the uniform magnetic field of 0.5 weber/(m2 The force on the wire is

27 / 96

When an electron enters in a magnetic field, right angle to its motion. then the magnitude of velocity will be

28 / 96

The working of galvanometer depends upon torque on a current carrying coil in

29 / 96

In CRO the x-plates deflect the beam of electrons _________ on screen

30 / 96

The SI units of magnetic permeability is

31 / 96

A current carrying wire is surround by

32 / 96

One tesla is equal to

33 / 96

In galvanometer the coil is situated in the magnetic field such that the plane of the coil is always

34 / 96

When the coil of the galvanometer is in equilibrium; then the deflecting couple is

35 / 96

In e/m experiment, the path of the electron can be made visible by filling glass tube with

36 / 96

Magnetic flux will be minimum when

37 / 96

The grid in CRO

38 / 96

Lorentz force is given by

39 / 96

The electron, gun in CRO consists of

40 / 96

Charge to mass ratio of neutron is__________ that of electron

41 / 96

The SI unit of magnetic induction is

42 / 96

If an electron enters the perpendicular magnetic field with a velocity v it will experience a force which is given by F=

43 / 96

The waveform produced by sweep or time base generator in CRO is

44 / 96

A magnetic field is always set up due to

45 / 96

The beam of electrons in CRO is deflected when they pass through uniform

46 / 96

When a current carrying conductor is placed in a uniform magnetic field, it experience a force which is given by

47 / 96

Torque necessary to produce unit twist is called

48 / 96

The force Experienced by a charge particle is maximum if it moves

49 / 96

In CRO when cathode is .heated by a filament, it emits

50 / 96

Two parallel straight wires carrying currents in opposite direction

51 / 96

CRO when beam of electrons falls on screen; it makes a visible spot because the screen is

52 / 96

If the current passing through a wire in a magnetic field is halved the magnetic force would become

53 / 96

The magnetic effect near the current carrying conductor was discovered by

54 / 96

Magnetic flux will be maximum when

55 / 96

Ammeter is a

56 / 96

When charged particle is projected perpendicular to a uniform magnetic field its trajectors is

57 / 96

When current passes through a solenoid coil, it behaves like a

58 / 96

Sensitivity of galvanometer is given by

59 / 96

If current is passing through a wire, lines of force near it are

60 / 96

The magnetic force experienced by a chai.ge particle is maximum, when charge particle is projected at

61 / 96

The working of all electrical instruments depends upon

62 / 96

In galvanometer, the restoring couple of the suspension wire is proportional to the angle of deflection as long as the wire obeys

63 / 96

A galvanometer is converted into an ammeter by connecting a suitable

64 / 96

Cathode ray oscilloscope works by deflecting beam of

65 / 96

The magnetic field outside the solenoid due to current is

66 / 96

When a charged particle moves through a magnetic field, the effect of the field, changes the particle's

67 / 96

In CRO, beam of electrons is focused by

68 / 96

In SI units, the value of permeability of free space (μ) is

69 / 96

In galvanometer the rectangular coil is made up of

70 / 96

The brightness of the spot On CRO screen is controlled by

71 / 96

CRO is used for displaying the wave form of a given

72 / 96

The magnetic field in a certain region is given by (B) = (40i^)-(18j^). How much flux passes a 5.0 cm2 area loop in this region if the loop lies hate in the xy-plane

73 / 96

A device used for the detection of current is called

74 / 96

The current passing through a coil of galvanometer is given by

75 / 96

When an electron enters in a perpendicular magnetic field of its motion. then direction of its motion

76 / 96

The force experienced by a single charge carrier moving with velocity V in a magnetic field of strength B is given by

77 / 96

A charge projected in the direction of magnetic field experiences

78 / 96

When charged particle enters perpendicular in magnetic field, it moves in

79 / 96

The mathematical expression Σ [(B). (l)] = (µ0I) is known as

80 / 96

The direction of lines of force depends upon the direction of

81 / 96

A high speed graph plotting device is

82 / 96

In CRO the grid is at _______potential with respect to cathode

83 / 96

The Working of a galvanometer depends upon

84 / 96

The magnetic field at a point due to a current carrying conductor is directly proportional to

85 / 96

Minimum current required to produce a deflection of one mm on a scale at a distance of 1 meter is

86 / 96

The relation between current I and the angle of deflection in a moving coil galvanometer is:

87 / 96

The sensitivity of a moving coil galvanometer can be, increased by

88 / 96

The galvanometer can be made sensitive if the value of the factor BAN/C is

89 / 96

An ideal ammeter has ________resistance

90 / 96

In a galvanometer, the enameled copper wire is wound on

91 / 96

Magnetic force performs

92 / 96

SI unit of magnetic flux is

93 / 96

In a moving coil galvanometer, the deflecting. Torque depends upon

94 / 96

Which of the, following is most suitable for the core of an electromagnet?

95 / 96

The galvanometer in which the coil comes to rest quickly after the current passed through it, is called

96 / 96

A long tightly wound cylindrical coil of wire is called

Your score is

The average score is 42%


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