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 2020-2021
|Contents:||MCQ Online Tests with Answers and Explanation|
Class 10 Science Chapter 12 MCQ with Answers for 2020-21
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 2020-2021.
Unit of electric power may also be expressed as
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
The resistivity does not change if
Which of the following represents voltage?
What is the maximum resistance which can be made using five resistors each of 1/5 Ω?
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
An electric fuse works on the:
In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?
A wire of resistance R1 is cut into five equal pieces. These five pieces of wire are then connected in parallel. If the resultant resistance of this combination be R2, then the ratio R1/R2 is:
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:
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.
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