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

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

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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




215

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

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

1 / 95

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

2 / 95

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

3 / 95

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

4 / 95

The sensitivity of galvanometer is given by

5 / 95

The value of e/m is smallest for

6 / 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

7 / 95

The sum of electric and magnetic force is called

8 / 95

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

9 / 95

1 Tesla =

10 / 95

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

11 / 95

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

12 / 95

The magnetic flux B is equal to

13 / 95

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

14 / 95

The SI unit of electric flux is:

15 / 95

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

16 / 95

Two parallel wires carrying current in the same direction:

17 / 95

The magnetic force is simply a

18 / 95

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

19 / 95

Magnetic effect of current was discovered by

20 / 95

The CRO is used for

21 / 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

22 / 95

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

23 / 95

The unit of magnetic flux is

24 / 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

25 / 95

In order to measure potential difference voltmeter is always connected in

26 / 95

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

27 / 95

An avometer can also be called as

28 / 95

DMM stands for

29 / 95

Shunted galvanometer is called

30 / 95

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

31 / 95

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

32 / 95

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

33 / 95

Total Flux through a closed surface depends on

34 / 95

1 tesla is equal to

35 / 95

The e/m of a neutron is

36 / 95

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

37 / 95

A strong magnetic field is applied to a stationary electron then

38 / 95

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

39 / 95

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

40 / 95

Brightness of screen of CRO controlled by

41 / 95

The magnetic force is

42 / 95

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

43 / 95

A voltmeter is an electrical instrument which is used to measure

44 / 95

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

45 / 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?

46 / 95

The unit of Magnetic Flux

47 / 95

The brightness of spot in CRO is controlled by

48 / 95

The sensitivity of a galvanometer can be, increased by

49 / 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?

50 / 95

AVOmeter basically consists of

51 / 95

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

52 / 95

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

53 / 95

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

54 / 95

One Tesla is equal to

55 / 95

A voltmeter is always connected in circuit in

56 / 95

The sensitivity of galvanometer is given by

57 / 95

A voltmeter is always connected in

58 / 95

The brightness of spot on CRO screen is controlled by

59 / 95

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

60 / 95

The ray which remain undeflected in a magnetic field is

61 / 95

Which is the correct relation

62 / 95

The resistance of an ideal ammeter

63 / 95

The charges moving perpendicular to magnetic field experience force

64 / 95

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

65 / 95

Emf is induced due to change in

66 / 95

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

67 / 95

Energy stored per unit volume inside a solenoid is called

68 / 95

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

69 / 95

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

70 / 95

Lorentz force is given by

71 / 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

72 / 95

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

73 / 95

The brightness of the spot on CRO screen is controlled by

74 / 95

Two parallel straight wires carrying current in same direction will

75 / 95

The brightness of spot in CRO is controlled by

76 / 95

One Tesla is equal to

77 / 95

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

78 / 95

The number of electrons on CRO is controlled by

79 / 95

The resistance of ideal voltmeter is

80 / 95

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

81 / 95

The sensitivity of galvanometer is given by

82 / 95

Torque on a current carrying coil is given by

83 / 95

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

84 / 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?

85 / 95

The SI unit of magnetic induction is

86 / 95

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

87 / 95

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

88 / 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

89 / 95

The value of permeability of free space µ0 is given by

90 / 95

The brightness of the spot on CRO screen is controlled by

91 / 95

The S.I unit of magnetic flux is given by

92 / 95

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

93 / 95

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

94 / 95

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

95 / 95

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

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