How much would you raise the temperature of a cooper wire (originally at 20 degrees Celsius) to increase its resistance by 17%?

asked by @simmyk2 • 6 months ago • Physics • 5 pts

I need a full detailed explanation on how to solve this problem.

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1 answer

R=Ro[1+α(T-To)], where R is the resistance and Ro is the initial resistance. α is the temperature coefficient (α=.004 for copper), T is the temperature and To is the initial temperature, 20 celcius in this case.

R/Ro=1.17 since it increases by 17% so

1.17=1+α(T-20)

.17=.004T-.08

T=62.5 degrees Celsius

answered by @juanv2 • 6 months ago