ICSE Class 10 Physics Revision Notes Chapter 9 - Electrical Power and Household Circuits

ICSE

ICSE Class 10 Physics Revision Notes Chapter 9 - Electrical Power and Household Circuits

Revision Notes for ICSE Class 10 Physics Chapter 9 - Free PDF Download

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Class 10 Physics Chapter 9 on the topic ‘Electrical Power and Household Circuits

This chapter is important as it explains the concept of electric current in our houses, how it is generated, how the current comes in our household circuits, etc.

Revision Notes for ICSE Class 10 Physics Chapter 9

Some Topics which are Important in Physics Chapter 9 - Electrical Power and Household Circuits

Electrical energy and its units
Transmission of current in household
Electric fuse
Electric switch
Different electrical appliances
Electric safety

Short Notes on Physics Chapter 9 - Electrical Power and Household Circuits

1. Electrical energy and its units - We use a lot of devices in our household which convert electrical energy into other forms of energy, such as light energy, sound energy, chemical energy, etc. These are called electrical appliances or electrical devices. The electrical energy that is supplied depends upon the current flowing in, the resistance of the wire, the potential difference across the wire and the time for which current is flowing in.

2. Transmission of current in households - The commercial transmission of current in households is done in a very careful manner. The commercial units of electrical energy in households are watt(W) and kilowatt (kW). The total energy consumed by an electrical device is given by the formula: Electrical energy = Power * Time. The power is transmitted at a high voltage to minimize the loss of energy. The power is transmitted by the Tree System and Ring System, two ways of distribution of current in households.

3. Electric fuse and switch - An electric fuse is a device which is used to control the flow of current, from the household mains to the electric circuit. Whenever the circuit gets overloaded, the electric fuse melts and breaks down. An electric switch is a device used to start or stop the current flow in an electric circuit. A double switch is used to operate one electrical appliance from two different positions.

4. Electric safety - Electricity must be handled very carefully and should not be mishandled or misused. Earthing is a safety device which is used for electric safety, to prevent electric shocks, short circuits, etc. The household supply of electricity is also done very carefully. In the household, colour coded wires are used, so that it is understood which wire denotes what from the colour itself.

FAQs on ICSE Class 10 Physics Revision Notes Chapter 9 - Electrical Power and Household Circuits

1. Where do I get all the revision notes for studying ICSE Class 10 Chapter 9 Physics?

Students will get all the revision notes for ICSE Class 10 Chapter 9 Physics in Vedantu. Here, all the revision notes, study materials, and previous year papers are available, so students will not face any problems. All the useful resources are prepared by subject professionals, so students will get perfectly reliable and accurate study materials from Vedantu. All of this is available free of cost. By following the revision notes and other study materials, students will surely score good marks in their school examinations as well as in board exams.

2. Why are revision notes important for ICSE Class 10?

Revision notes are very important not only for Class 10, but also for other classes. They help a lot before the exams of a student. Since Class 10 students’ main goal is their board exams, they should go through the revision notes very thoroughly. Revision notes help in increasing the memory of the student. It aids in the students’ study in a very compact manner, which helps the students because it doesn’t overload the brain of the students with information the night before the exams. Revision notes are very important for high school students.

3. What if the student finds ICSE Class 10 Physics difficult, how to overcome the difficulty?

If the student finds ICSE Class 10 Physics difficult, then they should devote more time to Physics. First of all, they should read the book very carefully and thoroughly to grasp all the concepts. Once they are done studying the book, they should start solving the questions at the end of the chapter. If the student cannot understand the questions, then again, they should go through the chapter. After everything, they should solve sample question papers, previous year papers and test paper books. Following all the above tips will help the student overcome their difficulty.

4. Write a short note on electrical circuits and household energy.

In our daily life, we use electrical energy in a lot of household work. Almost all the appliances in our homes are run by electricity. This is also called the commercial use of electrical energy. For commercial purposes, the unit used for electrical energy is Watt. The bigger units are kilowatt, megawatt and horsepower. The amount of electrical energy passing through a device is measured by the current, potential difference, resistance and time taken by the current to flow.

5. What are Tree System and Ring System?

They are two systems which are used for the distribution of electric current in households. In this system, the ring system is more prevalent. In this system, the circuit looks like a ring that starts from the house mains and goes around the house and returns in the distribution system again. There are many advantages of the ring system over the tree system. In the ring system, the appliances can be directly connected to the main circuit in the room. In both the systems, parallel arrangement of circuits is used.

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