Problem a wire 300 m long and 0450 mm2 in cross-sectional, Ask an Expert

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Problem: A wire 3.00 m long and 0.450 mm2 in cross-sectional area have a resistance of 39ohm at 20°C. If its resistance increases to 39.7ohm at 27.0°C,

Part A: What is the temperature coefficient of resistivity?

= _____ °C-1

I need help to determine the temperature coefficient of resistivity.

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