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ICSE Class 10 Physics Question 7 of 25

Solved 2025 Specimen Paper ICSE Class 10 Physics — Question 20

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Question

Question 3(ii)

If live wire makes an accidental contact with the metal case, which circuit (A or B) in the diagram, illustrating an electric iron, is considered safe for the user (Assuming the fuse is present in the live wire in both circuits)? Justify your answer.

The adjacent diagram shows the movable block of a block and tackle system with effort in a convenient direction. From the diagram we can conclude that the number of pulleys used in the fixed block are.ICSE 2025 Specimen Physics Solved Question Paper.
Answer

The electric iron, is considered safe for the user in circuit A because in this circuit metal case is earthed so the person won't get an electric shock but in circuit B metal case is not earthed so the circuit will be completed through the body of the person giving him a shock.