Asked Dec 19, 2019

A given copper wire has a resistance of 5.00 Ω at 20.0°C while
a tungsten wire of the same diameter has a resistance of 4.75 Ω
at 20.0°C. At what temperature will the two wires have the
same resistance?


Expert Answer

Step 1

Equate the resistance of c...


Image Transcriptionclose

Re, = Rw Roc (1+ ac, (T – T,)) = Row(1+ Aq» (T – T,)) (T – T,)(Roc,Ccu - RgwyCw) = Ryw – Roca Row – Rocu Roc,dcs - RowAw T =T, +


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