1. The problem statement, all variables and given/known data At what temperature will aluminum have a resistivity that is three times the resistivity of tungsten at room temperature? Rt=5.6 X 10^-8 ohm*m (The resistivity coefficient of tungsten at 20 degrees celcius) R0=1.59 x 10^-8 ohm*m (The resistivity coefficient of silver at 20 degrees celcius) α =3.9 X 10^-3 degrees celsius ^- 1 (Temperature coefficient of resistivity for aluminum) ΔT= Tf-Ti I am not sure what the initial temperature is, I assume its 20 degrees celcius. 2. Relevant equations Rt = R0 * ( 1 + α * ΔT) 3. The attempt at a solution 3Rt = R0 * ( 1 + α * ΔT) I get 11.42 degrees celsius which is wrong?