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




154

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

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

1 / 95

Energy stored per unit volume inside a solenoid is called

2 / 95

The SI unit of electric flux is:

3 / 95

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

4 / 95

DMM stands for

5 / 95

The brightness of spot in CRO is controlled by

6 / 95

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

7 / 95

Two parallel wires carrying current in the same direction:

8 / 95

Brightness of screen of CRO controlled by

9 / 95

The sensitivity of galvanometer is given by

10 / 95

One Tesla is equal to

11 / 95

The resistance of ideal voltmeter is

12 / 95

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

13 / 95

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

14 / 95

The ray which remain undeflected in a magnetic field is

15 / 95

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

16 / 95

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

17 / 95

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

18 / 95

The sum of electric and magnetic force is called

19 / 95

The CRO is used for

20 / 95

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

21 / 95

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

22 / 95

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

23 / 95

1 Tesla =

24 / 95

The unit of Magnetic Flux

25 / 95

Emf is induced due to change in

26 / 95

Shunted galvanometer is called

27 / 95

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

28 / 95

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

29 / 95

Which is the correct relation

30 / 95

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

31 / 95

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

32 / 95

Lorentz force is given by

33 / 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?

34 / 95

The sensitivity of a galvanometer can be, increased by

35 / 95

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

36 / 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?

37 / 95

The magnetic force is

38 / 95

The value of permeability of free space µ0 is given by

39 / 95

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

40 / 95

An avometer can also be called as

41 / 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

42 / 95

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

43 / 95

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

44 / 95

The magnetic force is simply a

45 / 95

Torque on a current carrying coil is given by

46 / 95

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

47 / 95

The number of electrons on CRO is controlled by

48 / 95

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

49 / 95

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

50 / 95

The SI unit of magnetic induction is

51 / 95

The sensitivity of galvanometer is given by

52 / 95

The e/m of a neutron is

53 / 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

54 / 95

AVOmeter basically consists of

55 / 95

The brightness of spot in CRO is controlled by

56 / 95

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

57 / 95

The sensitivity of galvanometer is given by

58 / 95

A voltmeter is always connected in circuit in

59 / 95

The magnetic flux B is equal to

60 / 95

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

61 / 95

The S.I unit of magnetic flux is given by

62 / 95

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

63 / 95

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

64 / 95

The brightness of spot on CRO screen is controlled by

65 / 95

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

66 / 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

67 / 95

In order to measure potential difference voltmeter is always connected in

68 / 95

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

69 / 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

70 / 95

1 tesla is equal to

71 / 95

A strong magnetic field is applied to a stationary electron then

72 / 95

Two parallel straight wires carrying current in same direction will

73 / 95

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

74 / 95

Magnetic effect of current was discovered by

75 / 95

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

76 / 95

Total Flux through a closed surface depends on

77 / 95

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

78 / 95

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

79 / 95

A voltmeter is an electrical instrument which is used to measure

80 / 95

A voltmeter is always connected in

81 / 95

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

82 / 95

The brightness of the spot on CRO screen is controlled by

83 / 95

The unit of magnetic flux is

84 / 95

The resistance of an ideal ammeter

85 / 95

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

86 / 95

The charges moving perpendicular to magnetic field experience force

87 / 95

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

88 / 95

One Tesla is equal to

89 / 95

The value of e/m is smallest for

90 / 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

91 / 95

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

92 / 95

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

93 / 95

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

94 / 95

The brightness of the spot on CRO screen is controlled by

95 / 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?

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