Resistance at a given temperature:

$\overline{)\begin{array}{rcl}\frac{\mathbf{R}\mathbf{-}{\mathbf{R}}_{\mathbf{0}}}{{\mathbf{R}}_{\mathbf{0}}}& {\mathbf{=}}& \mathbf{\alpha}\mathbf{(}\mathbf{T}\mathbf{-}{\mathbf{T}}_{\mathbf{0}}\mathbf{)}\\ {\mathbf{R}}& {\mathbf{=}}& {\mathbf{R}}_{\mathbf{0}}\mathbf{[}\mathbf{1}\mathbf{+}\mathbf{\alpha}\mathbf{(}\mathbf{T}\mathbf{-}{\mathbf{T}}_{\mathbf{0}}\mathbf{\left)}\mathbf{\right]}\end{array}}$

True or False: Most conducting materials have different resistances at different temperatures.

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