Determine the resistance of a given resistance thermometer at the ice point and the steam point of 2Ω and 2.73Ω, respectively.?
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Answer:Explanation:
The resistances are as follows :
R
0
=
2.2
Ω
R
100
=
5.6
Ω
The temperature coefficient of the platinum thermometer is
α
=
R
100
−
R
0
100
−
0
=
5.6
−
2.2
100
=
0.034
Ω
∘
C
−
1
Let the temperature of the bath be
=
θ
∘
C
R
θ
=
7.3
Ω
Therefore,
θ
=
R
θ
−
R
0
α
=
7.3
−
2.2
0.034
=
150
∘
C
Explanation:
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