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Question

An electrician is carrying out some repairs in your house. He wants to replace a fuse by a piece of wire. Would you agree? Give reasons for your response.

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Solution

No, because fuse is made of lead wire which has a very low melting point. A fuse wire melts quickly and breaks when large amount of current passes through the circuit. If the electrician replaces a fuse by a piece of ordinary wire (which has high melting point) it increases the risk of overheating due to flow of excessive current. This may lead to short circuit and fire.

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