NCERT Solutions Class 7 Science Chapter 3 – Electricity: Circuits and Components

Electricity makes the modern world go around—from lighting our homes to powering to devices we use every day. In NCERT Solutions Class 7 Science Chapter 3 - Electricity, introduces the fundamental workings of an electric circuit; electric components, conductors, insulators, and electric flow. 

This chapter provides the foundation to understand how electricity works in simple to complex systems. With NCERT Solutions, students can move through textbook questions with confidence while developing a practicable grasp of a crucial physics concept.

1.0NCERT Solutions Class 7 Science Chapter 3 – Electricity: Circuits and Components – Download PDF

Download the free PDF of NCERT Solutions for Class 7 Science Chapter 3 from below:

2.0Key Concepts in Chapter 3 – Electricity: Circuits and Components

This chapter introduces you to the following important concepts: 

Electric Current and Circuit Electricity :

• Electricity flows through a closed path called a circuit. 
• Current passes through the circuit and makes the devices work only when the circuit is complete (with no gaps).

Electric Cell : 

• A cell is a source of electric current, which has two terminals - positive (+) and negative (−). 
• The chemical actions taking place in the cell produce electricity.

Electric Bulb, and its parts : 

• The bulb lights up when the current passes through its filament. 
• If the filament is broken, the bulb will not light up.

Switches and Conductors : 

• A switch is used to open or close a circuit. 
• Conductors (like copper) allow the electricity to pass through; Insulators (like plastic) do not.

Series and Parallel Circuit (simple idea) : 

• A series circuit is one where all components are connected one after the other. 
• A parallel circuit has several paths for the current to flow.

Scientific Relevance and Daily-Life Applications 

This chapter is not just for theoretical understanding! Electricity is everywhere!

Homes and appliances  

• Every electric appliance you have in your home (TV, fridge, fan) works because of electric circuits.
• Appliances are controlled using switches that open or close to allow the current to move through the appliance itself.

Science and technology  

• All developments in electronics — smart-phones, computers, robots, -- are based on electric circuits.

DIY projects, learning   

• This chapter allows students to construct simple circuits using batteries, bulbs, and wires. 
• It also builds a foundation for robotics and electronics abilities.

Curiosity, exploration, and experimentation  

 This topic is hands-on and experiential, making it easy to work with young learners.

• Why does the bulb glow when we switch on a complete circuit?
• What happens to the circuit when we switch it off?
• Why don’t we electrocute when we touch the exterior plastic covering of some wires?

Students are motivated to experiment in a safe manner and learn through observation.

3.0Key Features of NCERT Solutions – Chapter 3 : Electricity: Circuits and Components

Solid Foundation of Concepts 

We have clearly explained each of the sections on electric circuits, components, and current in easy to understand language with good drawings and a common sense flow. 

Strongly Develops Critical Thinking

Each of our answers does more than just answer the question. Each explanation provided is a teaching moment so students can know the 'why' of the answer contributing to their formal reasoning ability and skills.

Includes All Textbook Exercises

All in-text and end-of-chapter questions are thoroughly covered to leave students feeling confident for the exam.

Real-Life Context

Students engage with the material in a way that is meaningful and useful, repairing a torch, using cells in a toy, or exploring what fuse wire is.

Enhances Test Readiness

Content is shared in steps, includes keywords, and uses correct terminology to prepare the student for both theory-based and objective-based questions.