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Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity

ICSE

Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity

ICSE Class 9 Physics Chapter 9 Selina Concise Solutions - Free PDF Download

Physics is one of the most critical subjects for students of ICSE Class 9. To score well in the ICSE board exams, students must have a thorough understanding of each chapter of the Physics subject. Solving and studying ICSE Class 9 Physics is made easier by the Selina Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity by Vedantu.

Many students tend to memorize the concepts of Physics instead of understanding them thoroughly, which doesn’t result in long-term retention. Students are required to have a thorough understanding of topics to score excellent marks in their ICSE board exams. Therefore, they must refer to the appropriate study material.

The Selina Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity available on Vedantu is not only beneficial for boards but also for competitive exams like JEE, NEET, etc. Students can refer to it to clearly understand the logic behind Physics’ concepts and rules. Students can also download the Selina Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity in PDF format to access it later in offline mode.

Class 9 Physics Chapter 9 ICSE Selina Concise Solutions - Free PDF Download

Selina is one of the best-prescribed books for preparing physics for the ICSE board.

Preparing for a conceptual subject like Physics requires a lot of practice, especially in the numerical part. You need to have a good understanding of the concepts for the numerical part.

At Vedantu, you will get concise solutions to the Class 9 Physics Chapter 9 Current Electricity. The solutions prepared by our subject experts are at par with the updated ICSE syllabus. You can download the PDF format of the solved chapters as well as the solved previous years’ question papers for your exam preparation.

Find all the chapter-wise answers for questions in Vedantu’s Selina Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity. Vedantu understands the ways to tackle questions in your Physics exam with Selina Solutions for ICSE Class 9 Physics. Solved questions by subject experts allow you to answer every type of question in your exam question paper with ease.

Our Selina Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity will help students to remember the correct answers and understand the concepts quickly. They contain stepwise solutions, as per the ICSE syllabus and guidelines, thereby making it convenient for students to understand how to write answers that can achieve good marks in the ICSE Physics class 9 exam.

Selina Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity

The Selina Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity are available here on Vedantu for students in easy language for better understanding. These solutions are very useful for students to examine their capacity while solving ICSE textbook questions. Selina Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity are designed by our subject experts to help students in ICSE board exam preparation.

The Selina Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity improves the problem-solving abilities among students. Selina Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity will be very useful for students for preparations and last-minute revisions to achieve a good score in school tests as well as ICSE examinations.

Current Electricity Class 9

ICSE Electricity Class 9 has three exercises, namely, 9 (A), 9 (B), and 9 (C). It has a total of 61 questions.

Table of Subtopics in Current Electricity

S.No.	Subtopics
1.	Sources of DC.
2.	Electric Current & Basics.
3.	Symbols used in Circuit Diagrams of Electrical Components.
4.	Basic Electric Circuit.
5.	Insulators & Conductors.
6.	Closed & Open Circuits.
7.	The flow of Electrons between the Conductors.
8.	The direction of flow of electric current Conventional Electron Flow
9.	Work done in moving a charge through a conducting wire.
10.	Aspects of Electricity: Resistance & Potential Difference.
11.	Efficient Use of Energy.
12.	Social Initiatives.

What Will You Learn in the Chapter Current Electricity?

Current electricity covers everything about electricity. This chapter explains the electric circuit by using an electric cell and a bulb to introduce the concept of the following:

1. Current.

2. Potential difference.

3. Insulators & Conductors.

4. Closed & Open Circuits.

5. The direction of current flow.

Introduction of Primary and secondary cells and the difference between them.
Unit of Electric current.
Symbols used in circuit diagrams for electric components such as

Key
Rheostat
Voltmeter
Resistance
Galvanometer
Switch
Connecting Wires
Voltmeter, etc

Various ways to adapt the use of energy-efficient resources such as LED, CFLs, and modern energy-efficient home appliances

Now, let’s have a look at the solved questions of the Selina book by our experts.

Some Sample Questions and Answers

Q1: State Ohm’s law.

Ans: An electric circuit is formed of three electrical components, they are:

(image will be uploaded soon)

Ohm’s law states that current ‘I’ flowing through this circuit is inversely proportional to the resistance (R). If there is a voltage (V) increase across it, there is a rise in the current, provided that the resistance doesn’t alter. So, its formula is:

V ∝ I

Removing the sign of proportionality, we have:

V = IR, which is Ohm’s law

(image will be uploaded soon)

Q2: What transformation of energy takes place when current is drawn from a cell?

Ans: The conversion of chemical energy into electrical energy takes place when current is drawn from a cell.

Q3: In the electric circuit drawn below, label the parts A, B, C, D, E, and F. State the function of each part. Depict the current flow direction in the diagram.

(image will be uploaded soon)

Ans: The question has two parts, which are:

The function of each electrical component, and
The direction of the current flow

Let’s discuss one-by-one:

The function of each part with the label

(Table will be updated soon)

The direction of flow of current.

(image will be uploaded soon)

Q4: Write the symbol and state function of Rheostat.

Ans:

1. Symbol of Rheostat:

(image will be uploaded soon)

2. State Function: A rheostat is an electrical instrument that controls the flow of current by varying the resistance.

Q5: Write the condition necessary for an electric circuit to be closed.

Ans: For an electric circuit to be closed, every component must be made of conductors.

Q6: Name the constituents of a cell.

Ans: The constituents of a cell are:

Two electrolytes.
An electrolyte in a vessel.

Why Refer To Vedantu For Previous Years’ Question Papers?

Key features are:

Our faculties have prepared solutions with rigorous research.
A simpler explanation of concepts.
The solution of previous years’ question papers is updated consistently.
Numericals are explained so concisely that it won’t take much time in understanding them.
Sample papers, model papers and their solutions are also available for enhancing preparation and time management.
All the things are available in a single window for your hassle-free search.
For any queries or doubts, you can reach us at Vedantu.com. Our experts are there for you on your preparation journey.

Vedantu contains exercise solutions for all the chapters of ICSE Physics Class 9 Physics that will give students an extensive idea of the different aspects of the physical subject. The Selina Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity PDF comes in handy while providing a proper grasp of the physics chapters. Students can refer to these solution materials to understand how to give answers correctly.

FAQs on Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity

1. Write the key differences between the Primary Cell and the Secondary Cell.

The battery is a cell that can generate electricity. A battery can have one or more electrochemical cells and is composed of terminals that can be connected to a device. Primary cells are those batteries in which irreversible chemical reactions are used to generate electrical energy, whereas Secondary cells are those batteries in which reversible reactions occur.

Primary Cell	Secondary Cell
Irreversible chemical reactions	Irreversible chemical reactions
Can’t be recharged	Can be recharged
When current is drawn from the primary cell, the chemical energy transforms to electrical energy.	During charging: Electrical energy converts into chemical energy. During discharging: Chemical energy converts into chemical energy.

2. Why does a metal wire, when connected to a Cell, offer resistance to the flow of current?

A metal wire has free electrons that move randomly, so when a wire is connected to the battery, electrons start drifting from a negative terminal to its positive terminal. During their movement, they collide with the free electrons and fixed ions of the wire. This causes them to lose their speed and change their direction.

As they move, they collide with each other and with the fixed ions of the wire. This collision affects their speed and changes their direction. Because of this, the electrons move slowly towards the positive terminal. Thus, the wire offers resistance to the flow of current.

3. Name any one most non-polluting and efficient Lighting Device.

LED is the most non-polluting and efficient lightning device. Light-emitting diodes or LED bulbs drastically reduce the consumption of energy. LEDs (Light Emitting Diodes) in white light hold the greatest potential for the future of all the common lighting types as they are one of today’s most energy-efficient and rapidly growing technologies. LEDs (Light Emitting Diodes) get illuminated by the movement of electrons in the semiconductor. They are tiny little bulbs that easily fit into an electrical circuit.

4. How can I Improve my Numerical Solving Ability in Selina Physics?

You can go through the solved solutions of the Selina book, available on our website. Practice those you will have a good hold on numerical solving ability. By practicing Selina Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity, students will be able to boost their exam preparation for the ICSE class 9 exam. These Selina Concise Physics Solutions for Class 9 Physics will help students of ICSE class 9 to understand difficult topics easily. These solutions promote an in-depth understanding of difficult questions from ICSE class 9 physics textbook. Selina Concise Physics Class 9 ICSE Solutions provide students with an extra edge in exam preparation.

5. How to get a downloadable PDF of Selina Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity?

Students can get Selina Concise Physics Class 9 ICSE Solutions for Chapter 9 - Current Electricity in a downloadable PDF format here by clicking the link provided herein. These Selina Concise Physics Class 9 ICSE Solutions have been carefully created by the expert teachers, based on the latest ICSE syllabus and guidelines, and it covers most of the important topics from Chapter 9 - Current Electricity. These Solutions can be downloaded with a free PDF option from the links provided here. Vedantu believes in giving the best to the students by providing hassle free learning experience to the students. Vedantu provides chapter wise solutions to every topic and students can access it for free and use as per their convenience.