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Jul1-07, 04:47 AM
1. The problem statement, all variables and given/known data
At 30ąC, the resistance of a segment of gold wire is 79 ohms*.
When the wire is placed in a liquid bath,
the resistance increases to 165 *ohms.
The temperature coefficient is 0.0034/C at 20 degrees Celcius.
What is the temperature of the bath? An-
swer in units of C.
2. Relevant equations
Resistance = R(initial)[1+ alpha (T(final) - T(initial)]
3. The attempt at a solution
165 = 79 * ( 1 + .0034 * (T_final - 30) )
T_final = 350.1787
I'm submitting this and it's saying I'm wrong. Is the homework service in error?
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