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




96

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

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

1 / 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

2 / 96

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

3 / 96

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

4 / 96

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

5 / 96

The SI unit of magnetic induction is

6 / 96

The magnetic field outside the solenoid due to current is

7 / 96

The unit of magnetic flux is

8 / 96

The current passing through coil of the galvanometer is

9 / 96

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

10 / 96

CRO is used for displaying the wave form of a given

11 / 96

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

12 / 96

SI unit of magnetic flux is

13 / 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

14 / 96

Magnetic field inside a long solenoid is

15 / 96

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

16 / 96

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

17 / 96

A charge projected in the direction of magnetic field experiences

18 / 96

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

19 / 96

The working of all electrical instruments depends upon

20 / 96

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

21 / 96

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

22 / 96

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

23 / 96

Charge to mass ratio of neutron is__________ that of electron

24 / 96

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

25 / 96

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

26 / 96

In galvanometer the rectangular coil is made up of

27 / 96

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

28 / 96

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

29 / 96

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

30 / 96

Ammeter is a

31 / 96

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

32 / 96

A galvanometer is converted into an ammeter by connecting a suitable

33 / 96

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

34 / 96

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

35 / 96

In CRO the grid is at _______potential with respect to cathode

36 / 96

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

37 / 96

In western type galvanometer, the jeweled bearings are used produced

38 / 96

Magnetic flux will be minimum when

39 / 96

Torque necessary to produce unit twist is called

40 / 96

Magnetic flux will be maximum when

41 / 96

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

42 / 96

Sensitivity of Galvanometer can he increased by increasing

43 / 96

The e/m of an electron can be expressed as

44 / 96

The brightness of the spot On CRO screen is controlled by

45 / 96

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

46 / 96

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

47 / 96

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

48 / 96

A magnetic field is always set up due to

49 / 96

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

50 / 96

Two parallel straight wires carrying currents in opposite direction

51 / 96

Magnetic flux per unit area perpendicular to magnetic field is called

52 / 96

Two parallel straight wires carrying currents in same direction

53 / 96

The current passing through a coil of galvanometer is given by

54 / 96

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

55 / 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

56 / 96

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

57 / 96

In CRO, beam of electrons is focused by

58 / 96

The electron, gun in CRO consists of

59 / 96

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

60 / 96

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

61 / 96

Lorentz force is given by

62 / 96

A long tightly wound cylindrical coil of wire is called

63 / 96

An ammeter only can be used in________ in a circuit

64 / 96

One tesla is equal to

65 / 96

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

66 / 96

One tesla is equal to

67 / 96

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

68 / 96

A device used for the detection of current is called

69 / 96

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

70 / 96

A current carrying wire is surround by

71 / 96

In a galvanometer, the enameled copper wire is wound on

72 / 96

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

73 / 96

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

74 / 96

The magnetic force is simply a

75 / 96

The Working of a galvanometer depends upon

76 / 96

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

77 / 96

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

78 / 96

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

79 / 96

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

80 / 96

The magnetic effect near the current carrying conductor was discovered by

81 / 96

Ampere's law can be used to calculate the_______field

82 / 96

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

83 / 96

An ideal ammeter has ________resistance

84 / 96

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

85 / 96

The grid in CRO

86 / 96

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

87 / 96

The direction of lines of force depends upon the direction of

88 / 96

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

89 / 96

Cathode ray oscilloscope works by deflecting beam of

90 / 96

Magnetic force performs

91 / 96

Sensitivity of galvanometer is given by

92 / 96

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

93 / 96

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

94 / 96

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

95 / 96

A high speed graph plotting device is

96 / 96

The SI units of magnetic permeability is

Your score is

The average score is 37%

0%



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