Class 10 Science Chapter 12 MCQ (Multiple Choice Questions) of Electricity. These questions are not only helpful in revision of chapter but in understanding the concepts also. MCQ includes questions based on intext book questions and exercises main points questions. Practice with these questions to score better in school tests and in MCQ based competition also. These MCQs ensure scoring good marks in all the exams.

Class 10 Science Chapter 12 MCQ Online Test for 2022-2023

Class: 10Science
Chapter: 12Electricity
Contents:MCQ Online Tests with Answers and Explanation

Class 10 Science Chapter 12 MCQ with Answers for 2022-23

Class 10 Science Chapter 12 MCQ Online Test with solutions and answers. There are more than 70 questions in the form of MCQs covering the entire chapter 12 of Class 10 Science. Most of the questions are confined to Latest NCERT Books for class 10 Science issued for session 2022-2023.

Q1

Consider the following statements and choose the correct one:

[A]. Opposite charges attract each other.
[B]. Similar charges repel each other.
[C]. The SI unit of electric charge is coulomb.
[D]. All the above
Q2

Two resistors of resistance 2Ω and 4Ω when connected to a battery will have

[A]. Same current flowing through them when connected in parallel
[B]. Same current flowing through them when connected in series
[C]. Same potential difference across them when connected in series
[D]. Different potential difference across them when connected in Parallel
Q3

An electric kettle consumes 1 kW of electric power when operated at 220 V. A fuse wire of what rating must be used for it?

[A]. 1 A
[B]. 2 A
[C]. 4 A
[D]. 5 A
Q4

Read the following sentences carefully, and choose the correct one:

[A]. The electric potential at a point in an electric field is defined as the work done in moving a unit positive charge from infinity to that point.
[B]. A potential of 1 volt at a point means that 1 joule of work is done in moving 1 unit positive charge from infinity to that point.
[C]. The difference in electric potential between two points is known as potential difference.
[D]. All the above.
Q5

In an electrical circuit two resistors of 2 Ω and 4 Ω respectively are connected in series to a 6 V battery. The heat dissipated by the 4 Ω resistor in 5 s will be

[A]. 5 J
[B]. 10 J
[C]. 20 J
[D]. 30 J
Q6

The resistivity does not change if

[A]. The material is changed
[B]. The temperature is changed
[C]. The shape of the resistor is changed
[D]. Both material and temperature are changed
Q7

Ankush appeared in class test but he confused to know the incorrect statement. Would you help him to know that?

[A]. A single dry cell has a potential difference of 1.5 volts between its two terminals.
[B]. The actual flow of electrons which constitutes the current from negative terminal to positive terminal of a cell.
[C]. The conventional direction of electric current is from positive terminal of a cell or a battery to the negative terminal, through the outer circuit.
[D]. None of the above.
Q8

Which of the following statement is or are correct?

[A]. Circuit is a continuous conducting path consisting of wires and switch between two terminals of a cell along which an electric current flow.
[B]. The electric current is a flow of electrons in a metal wire or conductor when a battery is applied across its ends.
[C]. The simplest way to maintain a potential difference between the two ends of a conductor is to connect the conductor between the terminals of a cell or battery.
[D]. All the above
Q9

A cylindrical conductor of length l and uniform area of cross section A has resistance R. Another conductor of length 2l and resistance R of the same material has area of cross section

[A]. A/2
[B]. 3A/2
[C]. 2A
[D]. 3A
Q10

Which of the following represents voltage?

[A]. Work done/ Current x Time
[B]. Work done x Charge
[C]. Work done x Time/Current
[D]. Work done x Charge x Time
Q11

In a science quiz competition, Neha are asked a question where she had to choose the statement which was/were correct?

[A]. The property of a conductor due to which it opposes the flow of current through it is called resistance.
[B]. The resistance of a conductor depends on length, thickness, nature of material and temperature of the conductor.
[C]. 1 ohm is the resistance of a conductor such that when a potential difference of 1 volt is applied to its ends, a current of 1 ampere flows through it.
[D]. All the above.
Q12

What is the minimum resistance which can be made using five resistors each of 1/5 Ω?

[A]. 1/5 Ω
[B]. 1/25 Ω
[C]. 1/10 Ω
[D]. 25 Ω
Q13

What is the maximum resistance which can be made using five resistors each of 1/5 Ω?

[A]. 1/5 Ω
[B]. 10 Ω
[C]. 5 Ω
[D]. 1 Ω
Q14

A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing through a cross section of the filament in 16 seconds would be roughly

[A]. 10 to the power 20
[B]. 10 to the power16
[C]. 10 to the power18
[D]. 10 to the power23
Q15

Electrical resistivity of a given metallic wire depends upon

[A]. Its length
[B]. Its thickness
[C]. Its shape
[D]. Nature of the material
Q16

The heat produced by passing an electric current through a fixed resistor is proportional to the square of:

[A]. Magnitude of resistance of the resistor
[B]. Temperature of the resistor
[C]. Magnitude of current
[D]. Time for which current is passed
Q17

Read the following sentences carefully, and choose the incorrect one:

[A]. Alloy of nickel, chromium, manganese and iron having a resistivity of about 60 times more than that of copper.
[B]. The heating elements of electrical heating appliances such as electric iron and toaster are made of an alloy rather than a pure metal.
[C]. Nichrome undergoes oxidation very easily at a high temperature.
[D]. Nichrome alloy is used for making the heating elements of electrical appliances.
Q18

Consider the following statements and choose the correct one:

[A]. The combined resistance of any number of resistance connected in series is equal to the sum of the individual resistances.
[B]. When two or more resistances are connected between the same two points, they are said to be connected in parallel.
[C]. When two or more resistances are connected end to end consecutively, they are said to be connected in series.
[D]. All the above.
Q19

Which of the following characteristic is not suitable for a fuse wire?

[A]. Thin and short
[B]. Thick and short
[C]. Low melting point
[D]. Higher resistance than rest of wiring
Q20

In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?

[A]. In series circuit, the appliances get the same voltage as that of the power supply line.
[B]. In series circuit, all the electrical appliances have only one switch due to which they cannot be turned on or off separately.
[C]. In series circuit, if one electrical appliance stops working due to some defect, then all other appliances also stop working.
[D]. In the series connection of electrical appliances, the overall resistance of the circuit increases too much due to which the current from the power supply is low.
Q21

How many joules of electrical energy are transferred per second by a 6 V; 0.5 A lamp?

[A]. 30 J/s
[B]. 12 J/s
[C]. 0.83 J/s
[D]. 3 J/s
Q22

The lamps in a house hold circuit are connected in parallel because:

[A]. This way they required less current
[B]. If one lamp fails the others remain lit
[C]. This way they require less power
[D]. If one lamp fails the other also fail
Q23

The resistance of a wire of length 300 m and cross-section area 1.0 mm2 made of material of resistivity 1.0 × 10−7 Ωm is:

[A]. 2 Ω
[B]. 3 Ω
[C]. 20 Ω
[D]. 30 Ω
Q24

Ohm’s law gives a relationship between:

[A]. Current and resistance
[B]. Resistance and potential difference
[C]. Potential difference and electric charge
[D]. Current and potential difference
Q25

One coulomb charge is equivalent to the charge contained in:

[A]. 2.6 × 10 to the power 19 electrons
[B]. 6.2 × 10 to the power 19 electrons
[C]. 2.65 × 10 to the power 18 electrons
[D]. 6.25 × 10 to the power 18 electrons
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