Current Electricity – LearnITbyTests

1. Name the instrument used to measure electrical resistance?

Voltmeter

Ohmmeter

Ammeter

Gauge

Question 1 of 117

2. Name a resistor whose resistance DOES NOT change linearly with the changes in the applied voltage?

Fixed resistor

Non-linear resistor

Variable resistor

Movable resistor

Question 2 of 117

3. Which of the following statements about potential difference is CORRECT?

Potential difference is work done to move an electric charge through a conductor

Measured in volts using the voltmeter

P.D = WORKDONE W (joules)/ CHARGE MOVED Q (couloumb)

None of the above

Question 3 of 117

4. Which of the following statements about potential difference is CORRECT?

Potential difference is work done to move an electric charge through a conductor

Measured in volts using the voltmeter

P.D = WORKDONE W (joules)/ CHARGE MOVED Q (couloumb)

None of the above

Question 4 of 117

5. Resistors can be connected in 3 types of connections in a circuit?

Series connection

Parallel connection

Series- parallel connection

All of the above

Question 5 of 117

6. Describe the resistivity of a semi-conductor in relation to temperature?

As temperature increases resistivity also increases

As temperature increases resistivity also decreases

As temperature decreases resistivity also decreases

None of the above

Question 6 of 117

7. Describe the resistivity of a metal conductor in relation to temperature?

As temperature increases resistivity also increases

As temperature increases resistivity also decreases

As temperature decreases resistivity also increases

None of the above

Question 7 of 117

8. Which of the following statements about potential difference is CORRECT?

Potential difference is work done to move an electric charge through a conductor

Measured in volts using the voltmeter

P.D = WORKDONE W (joules)/ CHARGE MOVED Q (couloumb)

None of the above

Question 8 of 117

9. In the Wheatstone bridge method when the galvanometer is adjusted until there is no difference in G the bridge is said to be:

Imbalanced

Zero

Balanced

None

Question 9 of 117

10. Ohms Law explains about the relationship between:

Voltage and resistance

Voltage and current

Voltage and potential difference

Work done and charges

Question 10 of 117

11. A conductor which has a constant resistance to current flow is called?

Good conductors

Insulator

Ohmic conductor

Non-ohmic conductor

Question 11 of 117

12. Which of the following is not a type of a fixed resistor?

Wire-wound resistor

Rheostat

Carbon resistor

Paper wound resistor

Question 12 of 117

13. Give the name of conductors which obey Ohms Law

Good conductors

Insulator

Ohmic conductor

Non-ohmic conductor

Question 13 of 117

14. Give the name of conductors which obey Ohms Law

Good conductors

Insulator

Ohmic conductor

Non-ohmic conductor

Question 14 of 117

15. Name the instrument used to measure electrical resistance?

Voltmeter

Ohmmeter

Ammeter

Gauge

Question 15 of 117

16. Mention the Law of components which are connected in parallel?

The total current flowing into a junction equals the total current flowing out

The same voltage drops across each of them

The current varies in each component

None of the above

Question 16 of 117

17. Which of the following is an example of Non-linear resistor?

Thermistor

Potentiometer

Light dependent resistor

L.E.D smart tv

Question 17 of 117

18. Electrical resistance of a wire conductor is conversely proportional to its cross-section area A.

False

True

Maybe

None

Question 18 of 117

19. Resistors can be connected in 3 types of connections in a circuit?

Series connection

Parallel connection

Series- parallel connection

All of the above

Question 19 of 117

20. Electrical resistance in a conductor increases as temperature is increased?

False

True

Maybe

None

Question 20 of 117

21. Name of the resistor that gives a fixed amount of resistance?

Variable resistor

Fixed resistance

Movable

Variable resistance

Question 21 of 117

22. In a series-parallel connection the whole network of resistors is reduced into a single resistor?

True

False

Maybe

None

Question 22 of 117

23. Describe the resistivity of a metal conductor in relation to temperature?

As temperature increases resistivity also increases

As temperature increases resistivity also decreases

As temperature decreases resistivity also increases

None of the above

Question 23 of 117

24. Electrical resistance in a conductor increases as temperature is increased?

False

True

Maybe

None

Question 24 of 117

25. Metals have a constant resistance with current flow. They are said to be:

Ohmic conductor

Insulator

Good conductor

Non-ohmic conductor

Question 25 of 117

26. Resistors connected in series the equivalent resistance is equal to the sum of individual resistance i.e. R total= R1 + R2 +R3

FALSE

Maybe

True

None

Question 26 of 117

27. State Ohms law

The current flowing through a conductor is equal to the potential difference across it

The current flowing through a conductor is inversely proportional to the potential difference across it provided the temperature and other physical conditions are kept constant.

The current flowing through a conductor is directly proportional to the potential difference across it provided the temperature and other physical conditions are kept constant.

None of the mentioned

Question 27 of 117

28. Why is the Wheatstone bridge method more accurate than the Voltmeter ammeter method?

The value obtained in the Wheatstone bridge method depends on the accuracy of galvanometer.

Because galvanometer is easy to adjust

The value obtained in the Wheatstone bridge method does not depend on the accuracy of galvanometer.

NONE OF THE ABOVE

Question 28 of 117

29. The potential difference of a cell/ battery between its terminals when no charge is flowing out of the cell/battery (in open circuit) is called?

P.D

Electromotive force

Voltage

None

Question 29 of 117

30. Describe the resistivity of a semi-conductor in relation to temperature?

As temperature increases resistivity also increases

As temperature increases resistivity also decreases

As temperature decreases resistivity also decreases

None of the above

Question 30 of 117

31. A non-ohmic conductor is a type of conductor whose resistance varies drastically with current flow hence it has no constant resistance. True or False?

False

True

Maybe

None

Question 31 of 117

32. Name a resistor whose resistance DOES NOT change linearly with the changes in the applied voltage?

Fixed resistor

Non-linear resistor

Variable resistor

Movable resistor

Question 32 of 117

33. Name the 3 factors which affect the resistance of a metallic conductor?

Temperature

Length of conductor

Cross section area

All of the above

Question 33 of 117

34. Which formula best describes Ohms Law ?

V is proportional to I

I = V/R

R= V/I

R=V*I

Question 34 of 117

35. Electrical resistance of a wire conductor is conversely proportional to its cross-section area A.

False

True

Maybe

None

Question 35 of 117

36. Ohms Law explains about the relationship between:

Voltage and resistance

Voltage and current

Voltage and potential difference

Work done and charges

Question 36 of 117

37. Resistors connected in series the equivalent resistance is equal to the sum of individual resistance i.e. R total= R1 + R2 +R3

FALSE

Maybe

True

None

Question 37 of 117

38. Electrical resistance of a uniform conductor increases with the length of the conductor?

True

False

Maybe

None

Question 38 of 117

39. Electrical resistance of a uniform conductor increases with the length of the conductor?

True

False

Maybe

None

Question 39 of 117

40. Why is the Wheatstone bridge method more accurate than the Voltmeter ammeter method?

The value obtained in the Wheatstone bridge method depends on the accuracy of galvanometer.

Because galvanometer is easy to adjust

The value obtained in the Wheatstone bridge method does not depend on the accuracy of galvanometer.

NONE OF THE ABOVE

Question 40 of 117

41. Name of the resistor that gives a fixed amount of resistance?

Variable resistor

Fixed resistance

Movable

Variable resistance

Question 41 of 117

42. A semi-conductor diode, thermionic diode and thermistor are materials whose resistance is not constant with current flow, they are said to be:

Ohmic conductor

Insulator

Good conductor

Non-ohmic conductor

Question 42 of 117

43. Which of the following is not a type of a fixed resistor?

Wire-wound resistor

Rheostat

Carbon resistor

Paper wound resistor

Question 43 of 117

44. State Ohms law

The current flowing through a conductor is equal to the potential difference across it

The current flowing through a conductor is inversely proportional to the potential difference across it provided the temperature and other physical conditions are kept constant.

The current flowing through a conductor is directly proportional to the potential difference across it provided the temperature and other physical conditions are kept constant.

None of the mentioned

Question 44 of 117

45. The potential difference of a cell/ battery between its terminals when no charge is flowing out of the cell/battery (in open circuit) is called?

P.D

Electromotive force

Voltage

None

Question 45 of 117

46. What is the name given to opposition offered by a conductor to the flow of electric current?

NASA

Jubilee

Electrical resistance

None

Question 46 of 117

47. The difference between E.M.F of a cell and the terminal voltage is known as?

Electromotive force

Potential difference

Internal resistance

Lost voltage

Question 47 of 117

48. Ohms Law explains about the relationship between:

Voltage and resistance

Voltage and current

Voltage and potential difference

Work done and charges

Question 48 of 117

49. Which formula best describes Ohms Law ?

V is proportional to I

I = V/R

R= V/I

R=V*I

Question 49 of 117

50. Name of the resistor that gives a fixed amount of resistance?

Variable resistor

Fixed resistance

Movable

Fixed resistor

Question 50 of 117

51. Materials which have a very low electrical resistance are said to have what type of conductance?

Medium

Low

High

Stable

Question 51 of 117

52. Name a resistor whose resistance DOES NOT change linearly with the changes in the applied voltage?

Fixed resistor

Non-linear resistor

Variable resistor

Movable resistor

Question 52 of 117

53. Which of the following is not a method to measure resistance in a circuit?

Voltmeter- ammeter method

The Wheatstone Bridge method

The meter bridge method

The Tudor-Bridge Method

Question 53 of 117

54. CURRENT = E.M.F /TOTAL RESISTANCE

TRUE

FALSE

MAYBE

NONE

Question 54 of 117

55. Mention the law of components that are connected in series in an electric circuit?

The same current flows through each component

The sum of voltage drops across the component is equal to supply voltage

The current varies in each component

all of the above

Question 55 of 117

56. Which of the following is an example of Non-linear resistor?

Thermistor

Potentiometer

Light dependent resistor

L.E.D smart tv

Question 56 of 117

57. A non-ohmic conductor is a type of conductor whose resistance varies drastically with current flow hence it has no constant resistance. True or False?

False

True

Maybe

None

Question 57 of 117

58. In resistors connected in parallel the equivalent resistance is given by: 1/R equivalent = 1/R1 + 1/R2 + 1/R3

True

False

Maybe

None

Question 58 of 117

59. Which formula best describes Ohms Law ?

V is proportional to I

I = V/R

R= V/I

R=V*I

Question 59 of 117

60. Name the instrument used to measure electrical resistance?

Voltmeter

Ohmmeter

Ammeter

Gauge

Question 60 of 117

61. Describe the resistivity of a semi-conductor in relation to temperature?

As temperature increases resistivity also increases

As temperature increases resistivity also decreases

As temperature decreases resistivity also decreases

None of the above

Question 61 of 117

62. A non-ohmic conductor is a type of conductor whose resistance varies drastically with current flow hence it has no constant resistance. True or False?

False

True

Maybe

None

Question 62 of 117

63. Resistors connected in series the equivalent resistance is equal to the sum of individual resistance i.e. R total= R1 + R2 +R3

FALSE

Maybe

True

None

Question 63 of 117

64. Which of the following is not a type of a fixed resistor?

Wire-wound resistor

Rheostat

Carbon resistor

Paper wound resistor

Question 64 of 117

65. Mention the 3 types of resistors?

Fixed resistor

Non-linear resistance

Variable resistor

All of the above

Question 65 of 117

66. Resistors can be connected in 3 types of connections in a circuit?

Series connection

Parallel connection

Series- parallel connection

All of the above

Question 66 of 117

67. Resistivity of a material is numerically equal to the resistance of a material of unit length and unit cross-section area at a certain temperature?

False

Maybe

True

None

Question 67 of 117

68. Electrical resistance of a uniform conductor increases with the length of the conductor?

True

False

Maybe

None

Question 68 of 117

69. CURRENT = E.M.F /TOTAL RESISTANCE

TRUE

FALSE

MAYBE

NONE

Question 69 of 117

70. State Ohms law

The current flowing through a conductor is equal to the potential difference across it

The current flowing through a conductor is inversely proportional to the potential difference across it provided the temperature and other physical conditions are kept constant.

The current flowing through a conductor is directly proportional to the potential difference across it provided the temperature and other physical conditions are kept constant.

None of the mentioned

Question 70 of 117

71. Mention the Law of components which are connected in parallel?

The total current flowing into a junction equals the total current flowing out

The same voltage drops across each of them

The current varies in each component

None of the above

Question 71 of 117

72. Materials which have a very low electrical resistance are said to have what type of conductance?

Medium

Low

High

Stable

Question 72 of 117

73. In a series-parallel connection the whole network of resistors is reduced into a single resistor?

True

False

Maybe

None

Question 73 of 117

74. Describe the resistivity of a metal conductor in relation to temperature?

As temperature increases resistivity also increases

As temperature increases resistivity also decreases

As temperature decreases resistivity also increases

None of the above

Question 74 of 117

75. What is the name given to opposition offered by a conductor to the flow of electric current?

NASA

Jubilee

Electrical resistance

None

Question 75 of 117

76. Name of the resistor that gives a fixed amount of resistance?

Variable resistor

Fixed resistance

Movable

Variable resistance

Question 76 of 117

77. Name the 3 factors which affect the resistance of a metallic conductor?

Temperature

Length of conductor

Cross section area

All of the above

Question 77 of 117

78. Mention the 3 types of resistors?

Fixed resistor

Non-linear resistance

Variable resistor

All of the above

Question 78 of 117

79. Materials which have a very low electrical resistance are said to have what type of conductance?

Medium

Low

High

Stable

Question 79 of 117

80. Mention the 3 types of resistors?

Fixed resistor

Non-linear resistance

Variable resistor

All of the above

Question 80 of 117

81. Why is the Wheatstone bridge method more accurate than the Voltmeter ammeter method?

The value obtained in the Wheatstone bridge method depends on the accuracy of galvanometer.

Because galvanometer is easy to adjust

The value obtained in the Wheatstone bridge method does not depend on the accuracy of galvanometer.

NONE OF THE ABOVE

Question 81 of 117

82. Which of the following is not a method to measure resistance in a circuit?

Voltmeter- ammeter method

The Wheatstone Bridge method

The meter bridge method

The Tudor-Bridge Method

Question 82 of 117

83. CURRENT = E.M.F /TOTAL RESISTANCE

TRUE

FALSE

MAYBE

NONE

Question 83 of 117

84. In resistors connected in parallel the equivalent resistance is given by: 1/R equivalent = 1/R1 + 1/R2 + 1/R3

True

False

Maybe

None

Question 84 of 117

85. Mention the Law of components which are connected in parallel?

The total current flowing into a junction equals the total current flowing out

The same voltage drops across each of them

The current varies in each component

None of the above

Question 85 of 117

86. A conductor which has a constant resistance to current flow is called?

Good conductors

Insulator

Ohmic conductor

Non-ohmic conductor

Question 86 of 117

87. Electrical resistance of a wire conductor is conversely proportional to its cross-section area A.

False

True

Maybe

None

Question 87 of 117

88. A conductor which has a constant resistance to current flow is called?

Good conductors

Insulator

Ohmic conductor

Non-ohmic conductor

Question 88 of 117

89. The difference between E.M.F of a cell and the terminal voltage is known as?

Electromotive force

Potential difference

Internal resistance

Lost voltage

Question 89 of 117

90. Mention the law of components that are connected in series in an electric circuit?

The same current flows through each component

The sum of voltage drops across the component is equal to supply voltage

The current varies in each component

all of the above

Question 90 of 117

91. In the Wheatstone bridge method when the galvanometer is adjusted until there is no difference in G the bridge is said to be:

Imbalanced

Zero

Balanced

None

Question 91 of 117

92. Give the name of conductors which obey Ohms Law

Good conductors

Insulator

Ohmic conductor

Non-ohmic conductor

Question 92 of 117

93. In resistors connected in parallel the equivalent resistance is given by: 1/R equivalent = 1/R1 + 1/R2 + 1/R3

True

False

Maybe

None

Question 93 of 117

94. Name the 3 factors which affect the resistance of a metallic conductor?

Temperature

Length of conductor

Cross section area

All of the above

Question 94 of 117

95. A semi-conductor diode, thermionic diode and thermistor are materials whose resistance is not constant with current flow, they are said to be:

Ohmic conductor

Insulator

Good conductor

Non-ohmic conductor

Question 95 of 117

96. Mention the SI UNIT of resistance

Ohm

Joules

Watt

Coulomb

Question 96 of 117

97. What is the name given to opposition offered by a conductor to the flow of electric current?

NASA

Jubilee

Electrical resistance

None

Question 97 of 117

98. In a series-parallel connection the whole network of resistors is reduced into a single resistor?

True

False

Maybe

None

Question 98 of 117

99. Metals have a constant resistance with current flow. They are said to be:

Ohmic conductor

Insulator

Good conductor

Non-ohmic conductor

Question 99 of 117

100. Resistivity of a material is numerically equal to the resistance of a material of unit length and unit cross-section area at a certain temperature?

False

Maybe

True

None

Question 100 of 117

101. Resistivity of a material is numerically equal to the resistance of a material of unit length and unit cross-section area at a certain temperature?

False

Maybe

True

None

Question 101 of 117

102. What is the name of conductors which are designed to offer specific resistance to electric flow of current?

Semi-conductor

Resistors

Flow meter

Ammeter

Question 102 of 117

103. Mention the SI UNIT of resistance

Ohm

Joules

Watt

Coulomb

Question 103 of 117

104. Name of the resistor that gives a fixed amount of resistance?

Variable resistor

Fixed resistance

Movable

Fixed resistor

Question 104 of 117

105. Which of the following is not a method to measure resistance in a circuit?

Voltmeter- ammeter method

The Wheatstone Bridge method

The meter bridge method

The Tudor-Bridge Method

Question 105 of 117

106. The potential difference of a cell/ battery between its terminals when no charge is flowing out of the cell/battery (in open circuit) is called?

P.D

Electromotive force

Voltage

None

Question 106 of 117

107. Electrical resistance in a conductor increases as temperature is increased?

False

True

Maybe

None

Question 107 of 117

108. Mention the law of components that are connected in series in an electric circuit?

The same current flows through each component

The sum of voltage drops across the component is equal to supply voltage

The current varies in each component

all of the above

Question 108 of 117

109. A semi-conductor diode, thermionic diode and thermistor are materials whose resistance is not constant with current flow, they are said to be:

Ohmic conductor

Insulator

Good conductor

Non-ohmic conductor

Question 109 of 117

110. In the Wheatstone bridge method when the galvanometer is adjusted until there is no difference in G the bridge is said to be:

Imbalanced

Zero

Balanced

None

Question 110 of 117

111. Name of the resistor that gives a fixed amount of resistance?

Variable resistor

Fixed resistance

Movable

Fixed resistor

Question 111 of 117

112. Mention the SI UNIT of resistance

Ohm

Joules

Watt

Coulomb

Question 112 of 117

113. The difference between E.M.F of a cell and the terminal voltage is known as?

Electromotive force

Potential difference

Internal resistance

Lost voltage

Question 113 of 117

114. What is the name of conductors which are designed to offer specific resistance to electric flow of current?

Semi-conductor

Resistors

Flow meter

Ammeter

Question 114 of 117

115. What is the name of conductors which are designed to offer specific resistance to electric flow of current?

Semi-conductor

Resistors

Flow meter

Ammeter

Question 115 of 117

116. Which of the following is an example of Non-linear resistor?

Thermistor

Potentiometer

Light dependent resistor

L.E.D smart tv

Question 116 of 117

117. Metals have a constant resistance with current flow. They are said to be:

Ohmic conductor

Insulator

Good conductor

Non-ohmic conductor

Question 117 of 117

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