An engince is designing a product in which a copper wire will carry large amount

Question

An engince is designing a product in which a copper wire will carry large amounts of electricity. The resistive heating of a 60. g copper wire is expected to add 560 J of heat energy during a 10-minute operating cycle What is the temperature increase of the wire? You may use the following information about copper to answer the question: specific heat -0385 Jgl ec1 density = 8.94 gan3 coefficient thermal expansion-65 ? m-1 K-1 -C D An engineer is designing a product in which a copper wire will carry large amounts of electricity. The resistive heating of a 60. g copper wire is expected to add 560 J of heat energy during a 10-minute operating cycle what is the initial length of the wire, assuming t is a cylinder and its radius s 0.0s ?? You may use the following information about copper to answer the question: specific heat 0.385Jg c density 8.94 g cm3 coefficient thermal expansion 6.5 um m K crn Previous Next

Explanation / Answer

Using

mC (increase in temp) = energy supplied

thus increase in temp = 560 / (0.6*0.385)= 2424.24 C

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