Question

A 400m aluminium wire has a resistance of 66 Ω at 12 °C. The wire is

heated to a temperature of 150 °C.
Determine the resistance of the wire at 150 °C, assuming that the
temperature coefficient of resistance at 0 °C is 0.004 / °C.

pls help

Answer 1

Answer:

Use formula

R = R° (1 + alpha ∆T)

This give approximate Answer