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The Following Diagram Shows Four Circuits A, B, C and D. Each Circuit Has a Cell and a Torch Bulb. Name the Circuits in Which the Bulb Will Glow ? Give Reason to Your Answer - ICSE Class 7 - Physics

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Question

The following diagram shows four circuits A, B, C and D. Each circuit has a cell and a torch bulb. Name the circuits in which the bulb will glow ? Give reason to your answer

Solution

The bulb will glow in circuit (D).
This is because copper is the best conductor of electricity as compared to aluminium. Silk is a non-conductor of electricity.

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Solution The Following Diagram Shows Four Circuits A, B, C and D. Each Circuit Has a Cell and a Torch Bulb. Name the Circuits in Which the Bulb Will Glow ? Give Reason to Your Answer Concept: Electromagnetism, Electromagnets and Their Applications- Electric Bell.
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