Question

A piece of metal wire has a resistance of 600 ohms at ice point and the resistance of 620 ohms at steam point. Calculate room temperature of resistance of wire is 630 ohms?

Answer 1

Answer:

Explanation:

Solution :

Here, R0=5Ω,R100=5.23Ω,

Rt=5.795Ω,t=?

As, α=R100−R0R0×100=Rt−R0R0×t

∴t=Rt−R0R100−R0×100=5.795−55.23−5×100

=0.7950.23×100=345.65∘CSolution :

Here, R0=5Ω,R100=5.23Ω,