The Resistance of a conductor is XΩ at 0°C temp. Find the temperature at which the resistance of conductor becomes 3XΩ. The temp. coefficient of resistance for counductor is 0.4 x 10-2°C-1 which is constant.
Answers
Answer:
ormula
R
2
=R
2
[1+α(T
2
−T
1
)]
R
1
→ResistanceatT
1
R
2
→ResistanceatT
2
α→temperaturecoefficient
R
1
=x
R
2
=3x
T
1
=0
o
T
2
=?
α=0.4×10
−2
3x=x(1+0.4×10
−2
(T
2
−0))
3=1+0.4×10
−2
(T
2
)
2=0.4×10
−2
T
2
T
2
=
0.4×10
−
2
2
=
4
2×10
3
=500
o
C
December 20, 2019
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