A tungsten wire has a radius of 0.000075 m and is heated fro…

A tungsten wire has a radius of 0.000075 m and is heated from 20.0°C to 1320°C. When 120 V is applied to across the ends of the hot wire, a current of 1.5 A is produced. (a) What is the resistivity of the wire? (b) What is the resistance of the wire? (c) How long is the wire?