To what temperature must you raise a copper wire, originally at 20.0°C, to double its resistance, neglecting any changes in dimensions? (Does this happen in household wiring under ordinary circumstances?)
Added by Stephen A.
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This is a measure of how much the resistance of copper changes with temperature. For copper, the temperature coefficient of resistance is approximately 0.00428 per degree Celsius. Show more…
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(a) To what temperature must you raise a copper wire, originally at 20.0ºC , to double its resistance, neglecting any changes in dimensions? (b) Does this happen in household wiring under ordinary circumstances?
Adi S.
(II) How much would you have to raise the temperature of a copper wire (originally at 20$^\circ$C) to increase its resistance by 12$\%$?
ELECTRIC CURRENTS
Resistivity
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