The resistance of a platinum wire is 150 at
20°C. This wire is put in a hot furnace and
the resistance of the wire is found to be 400.
Find the temperature of the hot furnace if
temperature coefficient of resistance of
platinum is 3.6 x 10°C-
efficient of
Answers
Answered by
1
Explanation:
Here R
0
=5Ω,
R
100
=5.23Ω,R
t
=5.795Ω
As α=
R
0
×t
R
100
−R
0
∴t=
R
100
−R
0
R
t
−R
0
×100
=
5.23−5
5.795−5
×100
=346.65
∘
C
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