## Question

###### A length of aluminum wire has a resistance of $30.0 Omega$ at $20.0^{circ} mathrm{C}$. When the wire is warmed in an oven and reaches thermal equilibrium, the resistance of the wire increases to $46.2 Omega$ (a) Neglecting thermal expansion, find the temperature of the oven. (b) Qualitatively, how would thermal expansion be expected to affect the answer?

A length of aluminum wire has a resistance of $30.0 Omega$ at $20.0^{circ} mathrm{C}$. When the wire is warmed in an oven and reaches thermal equilibrium, the resistance of the wire increases to $46.2 Omega$ (a) Neglecting thermal expansion, find the temperature of the oven. (b) Qualitatively, how would thermal expansion be expected to affect the answer?

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