# NCERT Exemplar Class 10 Science Solution Chapter 12: Electricity

Electricity Chapter 12 NCERT exemplar  Solution for Class 10 Science is a useful and important study material for the students for understanding the questions that can be asked in the exams from Chapter 12 Electricity Class 10 Science. The students need to get introduced to this chapter to score graceful marks in their CBSE Class 10 examination. This solution provides students with solutions to the queries that are provided in NCERT Class 10 Exemplar book. This sheet has solutions to 18 multiple choice questions, 11 Short answer type questions and 7 long answer type questions.

NCERT Exemplar  Class 10 Science Solution Chapter 12: Electricity | Free PDF Download

For helping students in understanding all the concepts simply and in having deep knowledge about concepts, we are providing a costless NCERT Exemplar for Class 10 Science Chapter 12 here at OSWAAL. This example will encourage students in understanding the correct solutions to all the problems provided at the end of the chapter. Notably, these NCERT Exemplars are assembled by experts and highly skilled teachers and can be used as beneficial understanding equipment. Students can use this exemplar to further score impressive grades on the exams.

A closer look at the Class 10 Science Chapter 12 NCERT Exemplar below.

NCERT Exemplar Class 10 Chapter 12 Electricity

Occasionally we might have gasped about what makes up electricity or how it flows in an electric circuit or what influences and governs the current through an electric path? In Chapter 12 Electricity we will find solutions to such problems. Students will come to understand other topics of electricity such as the effects and applications of heating or the effect of electric current, the circuit diagram, Ohm’s law, resistors and conductors, electrical potential and potential difference.

Topics covered by the  Class 10 NCERT Exemplar Solutions for Science Chapter 12 Electricity

• Introduction of the chapter
• Current

A flow of charge carriers is usually electron and electron-deficient atoms.

• The potential difference – Definition of volt and voltmeter

The difference in electric potential that is present between the final and the initial location is known as potential difference and it happens when the work is done upon a charge to change its potential energy.

• Ohm’s law – Ohm and resistance

The current that is passing through the conductor between two points is changed directly according to the voltage present across the two points is known as ohm's law.

A measure of the opposition to current flow in an electrical circuit is known as resistance.

• Factors on which the resistance of the conductor depends – Resistivity

The electrical resistance of a conductor having a unit cross-sectional area and also the unit length is known as resistivity.

Factors on which the resistance of the conductor depends

• Material, e.g. copper metal has a resistance which is lower than that of steel.
• length - longer wires have greater resistance.
• Thickness - wires with small diameters have greater resistance in comparison to wires having larger diameters.
• Temperature - heating a wire increases its resistance.

• Resistors in series – Total/resultant/ overall and voltage across each other

The electric components are connected end to end along the same line known as a series combination.

• Resistors in parallel

Resistors are known as a parallel combination when their terminals are connected to the same two nodes.

• The advantage of parallel combination over the series combination

The parallel combination is used in most household electrical wiring installations and on the other hand series combination is used to protect the circuit while connecting fuses and circuit breakers in series with the connected appliances.

• Effect of heating of an electric circuit – Joule’s law of the heating effect of electric current, electric fuse, electric power.

When we pass an electric current through a conductor, then the conductor becomes hot and after some time it produces heat.

The heating effect of current is being utilized in the working of heating appliances which work on electricity, for example, electric iron, electric kettle etc.

With the help of OSWAAL, students can top in their studies and can score reasonable marks in the examinations. Class 10 is known as an important stage in the life of students as Class 10 consists of the topics which are crucial to understanding completely to avoid trouble in the future. To help students understand the concepts OSWAAL bring notes, sample papers, videos and animation for the students. Visit OSWAAL’S website or download OSWAAL’S learning App, for a  customized learning experience.

Frequently Asked Questions based on NCERT Exemplar Solutions for Class 10 Science Chapter 12

Name the topics covered in Chapter 12 of NCERT Exemplar Solutions for Class 10 Science.

The topics covered in Chapter 12 of NCERT Exemplar Solutions for Class 10 Science are –

• Introduction of the chapter
• The potential difference – And also the definition of volt and voltmeter
• Ohm’s law – And the definition of Ohm and resistance
• Factors on which the resistance of the conductor depends – Definition of Resistivity
• Resistors arranged in the series combination – Total/resultant/ overall and voltage across each resistor
• Resistors are arranged in parallel combinations.
• The advantage of parallel combination over the series combination
• Effect of heating of an electric circuit – Joule’s law of the heating effect of electric current, electric fuse, electric power.

Explain How Joule’s heating effect can be illustrated experimentally in Chapter 12 of NCERT Exemplar Solutions for Class 10 Science?

Experiment to illustrate Joule's law of heating

1. Take an immersion rod which is water heating and connect that rod to the socket which on the other hand is connected to the regulator. It Is important to understand that a regulator controls the amount of current flowing through a device.
2. We have to keep the pointer of the regulator on the minimum and when a certain amount of water is heated then count the time taken by the immersion rod to heat a certain amount of water.
3. In the next step increase the pointer of the regulator to the next level and after this count the time taken by the immersion rod to heat the same amount of water that was taken previously.
4. For counting the time, repeat the above step for higher levels on the regulator.

Is the NCERT Exemplar Solutions for Class 10 Science Chapter 12 the best study material for the students?

The NCERT Exemplar Solutions for Class 10 Science Chapter 12 is helping students in improving their abstract understanding. Every question is answered by experts and teachers by keeping in mind the understanding capacities of students. The solutions which are created exactly adhere to the CBSE syllabus and CBSE Term II exam pattern for helping students to face the exams without fear of getting failed. By Using these solutions PDF, students will be able to accomplish a detailed view of the concepts which are important for the exams. In the board exams and competitive exams, most of the questions appear from the NCERT textbooks. For this examination purpose, students are instructed to practice the textbook problems regularly for their better academic performance.