Skip to main content
Super TutorResources
Chapter 3 of 12
QuestionsNotesFlashcardsSummaryFormulasQuizConceptsSyllabusPlan
Syllabus

Electricity: Circuits and their Components

CBSE · Class 7 · Science

Complete topic list for Electricity: Circuits and their Components in CBSE Class 7 Science. Key concepts, sub-topics, and what to focus on for board exams.

44 questions72 flashcards5 concepts

Interactive on Super Tutor

Studying Electricity: Circuits and their Components? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for syllabus and more.

Try Super Tutor — Free

1,000+ Class 7 students started this chapter today

4 Topics · CBSE Class 7 Science

Topics in Electricity: Circuits and their Components

1

1. Electric Cell and Battery

  • An electric cell is a portable source of electrical energy.
  • An electric cell has two terminals: positive and negative.
  • The positive terminal is the metal cap, which is protruding.
2

2. Electric Lamps: Incandescent Lamp and LED

  • An incandescent lamp has a thin wire called a filament inside a glass bulb.
  • The filament is attached to two thicker wires that form the two terminals of the lamp.
  • In an incandescent lamp, polarity does not matter for the lamp to glow.
3

3. Electrical Circuit and Switch

  • A lamp glows only when a complete electrical circuit is formed.
  • An electrical circuit is a complete path for electric current to flow through the lamp.
  • The direction of electric current in a circuit is taken from the positive terminal to the negative terminal of the cell.
4

4. Circuit Diagrams and Symbols

  • A circuit diagram is a representation of an electrical circuit using symbols.
  • Symbols make circuits easier to draw and understand.
  • In the symbol for an electric cell, the long line represents the positive terminal and the short line represents the negative terminal.

Key Concepts

Central concept: Electricity in simple circuits and the parts that make a circuit work

Electric cellBatteryElectric lampElectrical circuitSwitchCircuit diagramConductorsInsulators

Frequently Asked Questions

What are the important topics in Electricity: Circuits and their Components for CBSE Class 7 Science?
Electricity: Circuits and their Components covers several key topics that are frequently asked in CBSE Class 7 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Electricity: Circuits and their Components — CBSE Class 7 Science?
Understand the core concepts first, then work through the 44 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Electricity: Circuits and their Components

All 12 chapters — CBSE Class 7 Science Syllabus

For serious students

Get the full Electricity: Circuits and their Components chapter — for free.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for CBSE Class 7 Science.

Try Super Tutor Free
Try the full chapter — Free