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12th Class PHYSICS MCQs CHAPTER NO.3 ELECTROMAGNETISM Test No.1

Physics MCQs 2nd Year Chapter No. 3 ELECTROMAGNETISM Test No. 1, FSc, Grade 12, Second Year Multiple Choice Questions, Medical College ( MDCAT ) , ECAT & University Admission Entry Test Exams Online Preparation, Chapter Wise Questions Answers Quiz Notes in Pdf Download, All Old Board Papers included, All Queries reply within 24 Hours. Click here to Contact us for any Query/Question regarding Exams.

PHYSICS – 2nd Year
Chapter Name : ELECTROMAGNETISM
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)
Chapter Name : ELECTROMAGNETISM 
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




8

GRADE 12 - PHYSICS CHAPTER NO.3 ELECTROMAGNETISM Test No.1

GRADE 12 - PHYSICS CHAPTER NO.3 ELECTROMAGNETISM Test No.1

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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