Class 10 Science Chapter 12 MCQ

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 2021-2022

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

Class 10 Science Chapter 12 MCQ with Answers for 2021-22

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 2021-2022.

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

Renuka is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? Renuka wants to take help from you:

[A]. Those substances through which electricity can flow are called conductors.
[B]. Those substances through which electricity cannot flow are called insulators.
[C]. The presence of free electrons in a substance make it a conductor of electricity.
[D]. In static electricity the electric charges flows to one end to another end.




Q3

In an electrical circuit three incandescent bulbs A, B and C of rating 40 W, 60 W and 100 W respectively are connected in parallel to an electric source. Which of the following is likely to happen regarding their brightness?

[A]. Brightness of all the bulbs will be the same
[B]. Brightness of bulb A will be the maximum
[C]. Brightness of bulb B will be more than that of A
[D]. Brightness of bulb C will be less than that of B
Q4

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



Q5

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.
Q6

Priya is writing some statements, choose the incorrect statement and help him:

[A]. Those substance which have very low electrical resistance are called good conductors.
[B]. Those substances which have comparatively high electrical resistance, are called resistors.
[C]. Those substances which have infinitely high electrical resistance are called insulators.
[D]. The heating element of electric iron is made of nichrome wire which is an insulator.




Q7

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.
Q8

Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?

[A]. Electric power is the electrical energy consumed per second.
[B]. When an electrical appliance consumes electrical energy at the rate of 1 joule per seconds, its power is said to be 1 watt.
[C]. The rate at which electrical work is done or the rate at which electrical energy is consumed, is called electric power.
[D]. Electric power = Potential difference / Current




Q9

Tanu is writing some statements but she confused to know whether the statements are correct or not? If you know the answer to this question, then tell her:

[A]. 1 watt hour is the amount of electrical energy consumed when an electrical appliance of 1 watt power is used for 1 hour
[B]. One kilowatt hour is the amount of electrical energy consumed when an electrical appliances having a power rating of 1 kilowatt is used for 1 hour
[C]. 1 kilowatt hour is equal to 3.6 X 10 to the power 16, joules of electrical energy.
[D]. None of the above.
Q10

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
What is meant by an electric circuit?

A continuous and closed path of an electric current is called an electric circuit.

What is fuse wire and how does it work?

The fuse is placed in series with the device. It consists of a piece of wire made of a metal or an alloy of appropriate melting point, for example aluminium, copper, iron, lead etc. If a current larger than the specified value flows through the circuit, the temperature of the fuse wire increases. This melts the fuse wire and breaks the circuit.

What do you know about a resistor?

A conductor having some appreciable resistance is called a resistor.

What is variable resistance or rheostat?

A component used to regulate current without changing the voltage source is called variable resistance.

Updated CBSE NCERT Solutions

We use to updated NCERT Solutions according to latest updates provide by CBSE or feedback received by the users. We modify the contents as per need of students also. Most of the contents are available in Hindi and English Medium. Feel free to contact us regarding any educational help.