A 4.5 m length of copper wire at 25°C has a radius 0.30 mm. If a potential difference of 12.0V is applied across the length of the wire, determine the current in the wire if it is heated to 30°C. a=4x10^-3/°C and p=1.7x10^-8 Qm*
A 4.5 m length of copper wire at 25°C has a radius 0.30 mm. If a potential difference of 12.0V is applied across the length of the wire, determine the current in the wire if it is heated to 30°C. a=4x10^-3/°C and p=1.7x10^-8 Qm*
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Transcribed Image Text:A 4.5 m length of copper wire at 25°C has a
radius 0.30 mm. If a potential difference of
12.0V is applied across the length of the wire,
determine the current in the wire if it is heated
to 30°C. a=4x10^-3/°C and p=1.7x10^-8 Qm*
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