At room temperature the electrical conductivity and the electron mobility for copper are 6.0 × 107 (Ω • m) 1 and 0.0030 m2/V s, respectively.
(a) Compute the number of free electrons per cubic meter for copper at room temperature.
(b) What is the number of free electrons per copper atom? Assume a density of 8.9 g/cm3.
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