Question

A coil of wire has a resistance of 25.00 at 20°c and resistance of 25.17
at 35°c what is the temperature coefficient of resistance

Answer 1

Answer:

yea...

Explanation:

Answer 2

Answer:4.5 x 10^-4

Explanation: R = R' ( 1 + α ΔT)
solving this equation where R = 25.17 degree C and R' = 25 degrees,    

Δt = 15 , ( 35 - 20 ) you'll get the answer (: