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प्रश्न
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.
उत्तर
Circuit in A.
In circuit A, the metal case is earthed so that the person won't get an electric shock, but in circuit B, the metal case is not earthed, so the circuit will be completed through the person's body, giving him a shock.
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