12th Class PHYSICS MCQs CHAPTER NO.2 CURRENT ELECTRICITY Test No.1

Physics MCQs 2nd Year Chapter No.2 CURRENT ELECTRICITY 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 – Class 12
Chapter Name : CURRENT ELECTRICITY
Chapter No. 2 (Test No. 1)
Multiple Choice Questions from Text Book
Note : All MCQ’s selected in this test are from OLD board Papers and Text Book.




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2nd Year PHYSICS notes and MCQs are according to latest Paper Pattern of Punjab Boards, All Exercises in Textbooks are solved to ensure the Quality Education to Medical College Students. All MCQs are according to UHS (University of Health Sciences) Lahore approved Syllabus.

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Book Name :  Physics
Chapter No.  2 (Test No. 1 )
Chapter Name : CURRENT ELECTRICITY
Total MCQ from Text Book :  73
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 : Matric Boards of Sindh, KPK, Balochistan, AJK, Gilgit Baltistan, Punjab & Federal
Class / Grade  : 12 ( F.Sc.)
Total Marks : 73
Total Time :   73 minutes 




337

GRADE 12 - PHYSICS CHAPTER NO.2 CURRENT ELECTRICITY Test No. 1

GRADE 12 - PHYSICS CHAPTER NO.2 CURRENT ELECTRICITY Test No. 1

1 / 73

A platinum wire has resistance of 10Ω at 0°C and 20Ω at 273°C. Its value of temperature coefficient is:

2 / 73

If the resistance of 2, 3 and 6 ohms are connected in parallel, their equivalent resistance is:

3 / 73

The resistance of a wire is inversely proportional to its:

4 / 73

The vessel containing the two electrodes and the liquid is known as:

5 / 73

The reciprocal of the resistance is called:

6 / 73

The resistance of a conductor does not depend on its:

7 / 73

An electric current in a wire involves the movement of:

8 / 73

The resistance of a wire is directly proportional to its:

9 / 73

The velocity of the free electrons at room temperature due to their thermal motion is:

10 / 73

A thermistor is a heat sensitive:

11 / 73

If the diameter of a wire is doubled, then its resistance will:

12 / 73

The filament bulb does not obey Ohms law because:

13 / 73

The substances whose resistance decreases with increase in temperature have:

14 / 73

The graphical representation of Ohms law is:

15 / 73

The thermistors convert change of temperature into:

16 / 73

The current through a metallic conductor is due to motion of:

17 / 73

If there is no fourth band, it means tolerance is:

18 / 73

Ohm is defined as:

19 / 73

A heat sensitive resistor is called:

20 / 73

The reciprocal of the resistivity of a material is called:

21 / 73

Heat energy dissipated in a resistor "R" when connected to a battery of "V" volts and current "I" ampere flowing through it for time "t" is given by:

22 / 73

Free electrons are those which are:

23 / 73

The resistance of a meter cube of the substance is called:

24 / 73

The drift velocity of electrons is of the order of:

25 / 73

The current which passes from a point at higher potential to a point at lower potential is called:

26 / 73

The colour code of carbon resistor consists of:

27 / 73

The current across each resistance in series combination is:

28 / 73

The potential difference across each resistance in parallel combination is:

29 / 73

The heating effect of current is used in:

30 / 73

A silver band resistor shows a tolerance of: .

31 / 73

The device which converts heat into electrical energy is:

32 / 73

The thermistors are in the form of:

33 / 73

The SI unit of current is:

34 / 73

The resistance of a conductor at absolute zero (OK) is:

35 / 73

A wire has a current of 5A in it. How much charge passes through a point in the wire in 2 minutes?

36 / 73

In Ohms law, which factor remains constant:

37 / 73

Power dissipated as heat in the conductor of resistance "R" due to electric current "I" is given by:

38 / 73

The substance having negative temperature coefficient is:

39 / 73

The fractional change in resistance per Kelvin is known as:

40 / 73

Power dissipated in resistor can be calculated by the expression:

41 / 73

The property of a substance which opposes the flow of current is called:

42 / 73

The process of coating a thin layer of some expensive metal on an article of some cheap metal is called:

43 / 73

The potential difference across each resistance in series combination is:

44 / 73

In electrolyte, the charge carries are:

45 / 73

The resistance of a wire increases with increase in:

46 / 73

Three resistance 1Ω, 2Ω and 3Ω are connected in series by a battery of 6 volts then the current flowing through each resistor will be:

47 / 73

During the electrolysis of CuSO2 copper is deposited at:

48 / 73

The SI unit of temperature coefficient of resistance or resistivity of a material is:

49 / 73

Electric generator converts mechanical energy into:

50 / 73

In gases, the charge carriers are:

51 / 73

If the resistances R1, R2and R3 are connected in parallel, then the equivalent resistance is:

52 / 73

The liquid which conduct current is known as:

53 / 73

If the resistances R1, R2and R3 are connected in series, then the equivalent resistance is:

54 / 73

Solar cells converts sun light directly into:

55 / 73

A wire of uniform area of cross section "A" length "L" and resistance "R" is cut into two equal parts. The resistivity of each part:

56 / 73

The wire wound over an insulating cylinder of a rhcostat is made of:

57 / 73

Thermistors with high negative temperature coefficient are very accurate for measuring low temperature near:

58 / 73

A gold band resistor shows a tolerance of:

59 / 73

One coulomb per second is equal to:

60 / 73

What is the current in a 5 x 105 ohm resistor having a potential difference of 5 x 102 volts?

61 / 73

Which of the following represents the electric current?

62 / 73

The SI unit of resistivity is:

63 / 73

Heating effect caused by an electric circuit is written as:

64 / 73

Semiconductor is the example of:

65 / 73

The conventional current is due to flow of:

66 / 73

The unit of conductance is:

67 / 73

A rhcostat can be used as:

68 / 73

The rate of loss of energy is called:

69 / 73

The uniform velocity gained by the electrons in a conductor placed in an electric field is called:

70 / 73

The presence of electric current is detected by its:

71 / 73

Thermo-couple converts heat energy into:

72 / 73

The possible variation of resistor from the marked value means:

73 / 73

The speed of randomly moving electrons depends upon:

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