Question

Phy 1104 <Ch 18 HW Problem 18.42 An extension cord made of two wees of diameter 0 129 cm (no 16 copper wire) and of length 24 mis connected to an electric heater which draws 120 Aona 120-V in The resistivity of copper is 1 58x10m Part A How much power is dissipated in the cord? Express your answer to two significant figures and include the appropriate units T! A O = ? P Value Units Subm Request Answer < Return to Assignment Provide Foedback Type here to search

Answer 1

AnS001:- = 0.03082 resistance of single copper wire REPL = (1.68x10fem) 2.4m). *(0.129x10 m² Resistance of both coires = 2x0.0308 2 = 0.06172 Powen = FR = (124)*60.06170) = 8.885W