12th Class PHYSICS CHAPTER NO.3 ELECTROMAGNETISM Test No.2 MCQs

12th Class PHYSICS CHAPTER NO.3 ELECTROMAGNETISM Test No.2 MCQs

Physics MCQs 2nd Year Chapter No.3 ELECTROMAGNETISM Test No. 2, 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  [ Test No.2 ]
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  (Test No. 2)
Chapter Name : ELECTROMAGNETISM 
Total MCQ from Text Book :  95
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 : 95
Total Time :   95 minutes




205

GRADE 12 - PHYSICS CHAPTER NO.3 ELECTROMAGNETISM Test No. 2

GRADE 12 - PHYSICS CHAPTER NO.3 ELECTROMAGNETISM Test No. 2

1 / 95

If a long hollow copper pipe carries a direct current The magnetic field due to current will be

2 / 95

Two parallel wire carrying current in the same direction attract each other because of

3 / 95

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

4 / 95

An avometer can also be called as

5 / 95

The brightness of the spot on CRO screen is controlled by

6 / 95

A horizontal wire of 10cm and mass 0.3gm carries a current of 5A. Which of the following is the magnitude of the magnetic field that can support the weight of wire?

7 / 95

Which is the correct relation

8 / 95

The sensitivity of galvanometer is given by

9 / 95

The galvanometer can be made sensitive by making the factor BAN/C

10 / 95

The magnetic force is

11 / 95

Brightness of screen of CRO controlled by

12 / 95

A uniform magnetic field is represented by a set of lines of force which are

13 / 95

A strong magnetic field is applied to a stationary electron then

14 / 95

Total Flux through a closed surface depends on

15 / 95

In case of conversion of galvanometer into ammeter the shunt resistance is connected

16 / 95

A current carrying loop is placed in a uniform magnetic field. The torque acting on it, does not depend upon

17 / 95

The CRO is used for

18 / 95

The brightness of spot in CRO is controlled by

19 / 95

The S.I unit of magnetic flux is given by

20 / 95

A magnet drops down a long vertical copper tube. As it falls down the tube its velocity

21 / 95

Magnetic effect of current was discovered by

22 / 95

Shunted galvanometer is called

23 / 95

If a high resistance is connected in series to a galvanometer, then galvanometer is converted into

24 / 95

The e/m of a neutron is

25 / 95

A voltmeter is always connected in

26 / 95

A device which can measure current, potential difference and resistance is called

27 / 95

A charged particle moves through a magnetic field in a direction perpendicular to it. Which of the following remain unchanged for the partical

28 / 95

The magnetic flux B is equal to

29 / 95

In order to increase sensitivity galvanometer the value of C may by

30 / 95

The ray which remain undeflected in a magnetic field is

31 / 95

A proper combination of a galvanometer and a series of resistance acts as

32 / 95

In order to increase the range of an ammeter, the shunt resistance is

33 / 95

If 0.5 T filled over an area of 2(m2) which lies at an angle of 60° with field. Then the resulting flux will he

34 / 95

An electron and a proton enter a magnetic field with same velocity. Which of the following is the ratio of the acceleration

35 / 95

The number of electrons on CRO is controlled by

36 / 95

The SI unit of electric flux is:

37 / 95

An electron enters the magnetic field at right angle from left B is into paper. The electron will be deflected

38 / 95

The value of e/m is smallest for

39 / 95

A current flows in a conductor from east to west. The direction of the magnetic field at a point above the conductor is towards

40 / 95

The magnetic force is simply a

41 / 95

The unit of magnetic flux is

42 / 95

A charged particle moves along a circle under the action of possible electric and magnetic fields. Which of the following is possible

43 / 95

A 2Mev proton is moving perpendicular to a uniform magnetic field of 2.5T. Which of the following is the magnetic force on proton?

44 / 95

Torque on a current carrying coil is given by

45 / 95

Galvanometer can be converted into voltmeter by connecting a high resistance in:

46 / 95

A voltmeter is an electrical instrument which is used to measure

47 / 95

Voltmeter of range IV has a resistance of 1000?. To extend the range to 10V the additional series required is

48 / 95

Lorentz force is given by

49 / 95

In a current carrying long solenoid the magnetic filed produced does not depend upon

50 / 95

The sum of electric and magnetic force is called

51 / 95

AVOmeter basically consists of

52 / 95

Force on a charged particle is zero when projected at angle with the magnetic field

53 / 95

A charged particle enters in a strong magnetic field its k.E.

54 / 95

In order to increase the range of voltmeter, the series resistance is

55 / 95

Two parallel wires carrying current in the same direction:

56 / 95

The sensitivity of galvanometer is given by

57 / 95

Proton and a - particle moving with same velocity enter a magnetic field perpendicularly. Which of the following is the ratio of radius of proton to a - particle

58 / 95

Which of the following in motion can not be deflected by magnetic field?

59 / 95

A voltmeter is always connected in circuit in

60 / 95

Two parallel straight wires carrying current in same direction will

61 / 95

If a high resistance is connected in series with the galvanometer the resulting instrument is called

62 / 95

One Tesla is equal to

63 / 95

The sensitivity of galvanometer is given by

64 / 95

1 tesla is equal to

65 / 95

The radius of curvature of the path of charged particle in a uniform magnetic field is directly proportional the

66 / 95

The effective way to increase the sensitivity of moving coil galvanometer is

67 / 95

Useful device to measure resistance current and voltage is an electronic instrument called

68 / 95

The value of permeability of free space µ0 is given by

69 / 95

A charged particle enters at 30° to the magnetic field Its path becomes

70 / 95

The brightness of the spot on CRO screen is controlled by

71 / 95

The unit of Magnetic Flux

72 / 95

The high resistance Rh to convert a galvanometer into a voltmeter is Rh=

73 / 95

When an electron is entered in a magnetic field, The magnitude of velocity of electron

74 / 95

A power line lies along east-west direction and carries a current of 10A. Which of the following is the force Per meter due to earth's magnetic-field of 10-4 tesla?

75 / 95

An electron is moving in -a circle of radius r in a uniform magnetic field B. Suddenly the field is reduced to The radius of circle now becomes

76 / 95

When a charge is projected perpendicular to a uniform magnetic field, its path is

77 / 95

Energy stored per unit volume inside a solenoid is called

78 / 95

The SI unit of magnetic induction is

79 / 95

If the number of turns become double but length remain same, then magnetic field in the solenoid become:

80 / 95

The brightness of spot in CRO is controlled by

81 / 95

The resistance of an ideal ammeter

82 / 95

In order to measure potential difference voltmeter is always connected in

83 / 95

A charged particle is moving in uniform magnetic field in a circle. The radius of circular path is R. If q nervy of particle is doubled then the new radius will be

84 / 95

To convert a-galvanometer into an ammeter, of range I ampere the shunt resistance is given by

85 / 95

The charges moving perpendicular to magnetic field experience force

86 / 95

Torque is produced in a current carrying coil when it is placed in a

87 / 95

The brightness of spot on CRO screen is controlled by

88 / 95

The resistance of ideal voltmeter is

89 / 95

The sensitivity of a galvanometer can be, increased by

90 / 95

DMM stands for

91 / 95

Emf is induced due to change in

92 / 95

If a charge is at rest in a magnetic field then force on charge is

93 / 95

A magnetic needle is kept in a non-uniform magnetic field it experience

94 / 95

One Tesla is equal to

95 / 95

1 Tesla =

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