Question

A rear window defroster consists of a long, flat wire bonded to the inside surface of the window. When current passes through the wire, it heats up and melts ice and snow on the window. For one window the wire has a total length of 11.6 m, a width of 1.9 mm, and a thickness of 0.11 mm. The wire is connected to the car's 12.0 V battery and draws 7.5 A. 

Part A 

What is the resistivity of the wire material? 

Express your answer with the appropriate units. 

Answer 1

Answer 2