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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




232

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

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

1 / 95

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

2 / 95

The sensitivity of galvanometer is given by

3 / 95

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

4 / 95

An avometer can also be called as

5 / 95

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

6 / 95

Emf is induced due to change in

7 / 95

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

8 / 95

The resistance of ideal voltmeter is

9 / 95

The brightness of the spot on CRO screen is controlled by

10 / 95

AVOmeter basically consists of

11 / 95

DMM stands for

12 / 95

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

13 / 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

14 / 95

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

15 / 95

The sensitivity of galvanometer is given by

16 / 95

Two parallel wires carrying current in the same direction:

17 / 95

Magnetic effect of current was discovered by

18 / 95

The value of e/m is smallest for

19 / 95

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

20 / 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

21 / 95

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

22 / 95

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

23 / 95

The charges moving perpendicular to magnetic field experience force

24 / 95

The CRO is used for

25 / 95

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

26 / 95

The e/m of a neutron is

27 / 95

The S.I unit of magnetic flux is given by

28 / 95

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

29 / 95

In order to measure potential difference voltmeter is always connected in

30 / 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

31 / 95

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

32 / 95

Brightness of screen of CRO controlled by

33 / 95

The magnetic flux B is equal to

34 / 95

Torque on a current carrying coil is given by

35 / 95

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

36 / 95

Lorentz force is given by

37 / 95

The unit of Magnetic Flux

38 / 95

The number of electrons on CRO is controlled by

39 / 95

The value of permeability of free space µ0 is given by

40 / 95

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

41 / 95

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

42 / 95

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

43 / 95

The sensitivity of galvanometer is given by

44 / 95

The brightness of spot in CRO is controlled by

45 / 95

The magnetic force is simply a

46 / 95

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

47 / 95

A voltmeter is always connected in circuit in

48 / 95

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

49 / 95

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

50 / 95

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

51 / 95

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

52 / 95

A voltmeter is an electrical instrument which is used to measure

53 / 95

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

54 / 95

The unit of magnetic flux is

55 / 95

Energy stored per unit volume inside a solenoid is called

56 / 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?

57 / 95

1 Tesla =

58 / 95

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

59 / 95

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

60 / 95

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

61 / 95

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

62 / 95

The SI unit of magnetic induction is

63 / 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?

64 / 95

The brightness of spot on CRO screen is controlled by

65 / 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

66 / 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?

67 / 95

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

68 / 95

The magnetic force is

69 / 95

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

70 / 95

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

71 / 95

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

72 / 95

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

73 / 95

1 tesla is equal to

74 / 95

The ray which remain undeflected in a magnetic field is

75 / 95

One Tesla is equal to

76 / 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

77 / 95

One Tesla is equal to

78 / 95

The SI unit of electric flux is:

79 / 95

The sum of electric and magnetic force is called

80 / 95

A strong magnetic field is applied to a stationary electron then

81 / 95

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

82 / 95

The brightness of the spot on CRO screen is controlled by

83 / 95

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

84 / 95

Total Flux through a closed surface depends on

85 / 95

Which is the correct relation

86 / 95

A voltmeter is always connected in

87 / 95

The resistance of an ideal ammeter

88 / 95

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

89 / 95

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

90 / 95

The sensitivity of a galvanometer can be, increased by

91 / 95

Two parallel straight wires carrying current in same direction will

92 / 95

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

93 / 95

The brightness of spot in CRO is controlled by

94 / 95

Shunted galvanometer is called

95 / 95

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

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