Electricity: Circuits and their Components
CBSE · Class 7 · Science
Practice quiz for Electricity: Circuits and their Components — CBSE Class 7 Science. MCQs and questions with answers to test your preparation.
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Quick Quiz: Electricity: Circuits and their Components
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Which terminal of an electric cell is represented by a metal cap?
What is a combination of two or more electric cells called?
In an incandescent lamp, what part glows to produce light?
What does LED stand for?
Sample Questions
Which materials are good conductors of electricity?
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Copper, Silver, Gold
Metals like copper, silver, and gold are excellent conductors of electricity. Plastic and rubber are insulators that do not allow electric current to flow easily.
In which direction does electric current flow in a circuit?
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From positive to negative terminal
By convention, electric current is considered to flow from the positive terminal to the negative terminal of an electric cell in a closed circuit.
Which of the following are insulators?
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Glass, Wood, Wax
Glass, wood, and wax are insulators that do not allow electric current to flow through them easily. Iron and aluminum are metals and are conductors.
What happens when a switch is in the OFF position?
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The circuit is open
When a switch is in the OFF position, there is a gap in the circuit path, making the circuit open. No current can flow, so the lamp does not glow.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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