A copper cable has a resistance of 30 at a temperature of 50°C. Determine its resistance at 0°C. Take the temperature coefficient of resistance of copper at 0°C as 0.0043/°C.
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Answer:
ANSWER
Formula,
α=
R
T0
(T−T
0
)
R
T
−R
T0
0.0043=
2.43(60−50)
R
T
−2.43
R
T
=(
60−50
0.0043
)+2.43
∴R
T
=2.53Ω
Explanation:
Thank you
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