Question

The resistance of a conductor at 20°C is 3.15ohm and at 100-Cis 3.75ohm. Determine
the temperature coefficient of resistance of the conductor .What will be the
resistance of the conductor at 0°C?​

Answer 1

Answer:

Explanation:

=R'(1+α ΔT)60=20[1+α(500-20)]α=0.004166 /Clet the temp. at which resistance is 25 ohm is t25=20×[1+0.004166(t-20)]t = 80 degree C