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Question: Investigate the relationship between the fusing current and the diameter of a wire.
Answer: Fusing current is the amount of current that requires meeting the melting point of a wire, when current flows in a wire its temperature rises until the rate of loss of heat to the surroundings equals the rate at which heat is produced. If this temperature exceeds the melting-point of the material of the wire, the wire melts.
Cross Sectional Area of the wire
A thick wire allow a high current through it, while a thin wire would be difficult to get through due to it's restriction to a high rate of flow....(short extract)
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Details: Mark: 64% | Subject: Physics | Course: Physics | Level: A-Level | Year: Not applicable | Document type: Essay* | Words: 1894 | References: No | Date written: Not available | Date submitted: October 11, 2009 | Essay ID: 2630
