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Question

A fuse is a short piece of wire of ________ and _________.

A
High resistance, low melting point
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B
High resistance, high melting point
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C
Low resistance, low melting point
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D
Low resistance, high melting point
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Solution

The correct option is A High resistance, low melting point
A fuse protects the circuits and appliances by stopping the flow of any unduly high electric current. A fuse wire has high resistance so that it can handle the large magnitude of currents and it has a low melting point so that it can easily melt and break the circuit due to the flow of accidentally high magnitude of currents.

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