What is the Temperature of the Oven?

AI Thread Summary
The discussion centers on calculating the temperature of an oven based on the change in resistance of a copper wire. The initial resistance at 20 degrees Celsius is 0.8 ohms, and it increases to 1.2 ohms in the oven. The relevant formula for resistance, R = Ro[1 + α(Tf - Ti)], is highlighted, but participants express confusion about how to apply it without knowing the length and area of the wire. The main challenge is determining the temperature coefficient of resistivity and how to manipulate the formula with the given resistance values. Overall, the conversation emphasizes the need for additional information to solve the problem effectively.
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Homework Statement


The resistance of a copper wire is 0.8 ohms at 20 degrees Celsius. When it is placed in an oven, its resistance is 1.2 ohms. What is the temperature of the oven?


Homework Equations


resistivity = resistivity (initial) [1+ (temperature coefficient of resistivity)X (Tf-Ti)]


The Attempt at a Solution


I don't even know where to start..like I have the two resistance but then I don't know what to do with them...I can't plug them into the other formulas for resistivity because I don't have the length and area to find the resistivity for the different resistance values...
 
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The relevant formula is true for resistance also.
R = Ro[1 + α(Tf - Ti)]
 

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