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

###### FREE Expert Solution

Resistance at a given temperature:

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

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###### Problem Details

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