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 




273

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

The reciprocal of the resistance is called:

3 / 73

The device which converts heat into electrical energy is:

4 / 73

A gold band resistor shows a tolerance of:

5 / 73

Ohm is defined as:

6 / 73

The resistance of a conductor does not depend on its:

7 / 73

The speed of randomly moving electrons depends upon:

8 / 73

One coulomb per second is equal to:

9 / 73

The reciprocal of the resistivity of a material is called:

10 / 73

Solar cells converts sun light directly into:

11 / 73

Semiconductor is the example of:

12 / 73

A rhcostat can be used as:

13 / 73

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

14 / 73

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

15 / 73

The rate of loss of energy is called:

16 / 73

In Ohms law, which factor remains constant:

17 / 73

In electrolyte, the charge carries are:

18 / 73

The fractional change in resistance per Kelvin is known as:

19 / 73

The thermistors convert change of temperature into:

20 / 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:

21 / 73

The conventional current is due to flow of:

22 / 73

In gases, the charge carriers are:

23 / 73

The substance having negative temperature coefficient is:

24 / 73

The current across each resistance in series combination is:

25 / 73

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

26 / 73

Heating effect caused by an electric circuit is written as:

27 / 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:

28 / 73

During the electrolysis of CuSO2 copper is deposited at:

29 / 73

The resistance of a wire is directly proportional to its:

30 / 73

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

31 / 73

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

32 / 73

The SI unit of current is:

33 / 73

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

34 / 73

Power dissipated in resistor can be calculated by the expression:

35 / 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:

36 / 73

The unit of conductance is:

37 / 73

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

38 / 73

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

39 / 73

The filament bulb does not obey Ohms law because:

40 / 73

The resistance of a wire is inversely proportional to its:

41 / 73

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

42 / 73

Thermo-couple converts heat energy into:

43 / 73

The graphical representation of Ohms law is:

44 / 73

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

45 / 73

A thermistor is a heat sensitive:

46 / 73

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

47 / 73

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

48 / 73

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

49 / 73

The substances whose resistance decreases with increase in temperature have:

50 / 73

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

51 / 73

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

52 / 73

Free electrons are those which are:

53 / 73

The drift velocity of electrons is of the order of:

54 / 73

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

55 / 73

The SI unit of resistivity is:

56 / 73

Electric generator converts mechanical energy into:

57 / 73

The resistance of a wire increases with increase in:

58 / 73

The potential difference across each resistance in parallel combination is:

59 / 73

Which of the following represents the electric current?

60 / 73

The possible variation of resistor from the marked value means:

61 / 73

The presence of electric current is detected by its:

62 / 73

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

63 / 73

The potential difference across each resistance in series combination is:

64 / 73

The colour code of carbon resistor consists of:

65 / 73

The liquid which conduct current is known as:

66 / 73

A silver band resistor shows a tolerance of: .

67 / 73

An electric current in a wire involves the movement of:

68 / 73

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

69 / 73

The thermistors are in the form of:

70 / 73

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

71 / 73

A heat sensitive resistor is called:

72 / 73

The heating effect of current is used in:

73 / 73

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

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