the electrical conductivity and the electron mobility for some metal at room temperature are 5.4 x 10^3 (ohm-m)^-1
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(a) Calculate the number of free electrons per cubic meter for silver, assuming that there are $1.3$ free electrons per silver atom. The electrical conductivity and density for $\mathrm{Ag}$ are $6.8 \times 10^{7}(\Omega \cdot \mathrm{m})^{-1}$ and $10.5 \mathrm{~g} / \mathrm{cm}^{3}$, respectively. (b) Now, compute the electron mobility for $\mathrm{Ag}$.
(a) Calculate the number of free electrons per cubic meter for silver, assuming that there are 1.3 free electrons per silver atom. The electrical conductivity and density for Ag are $6.8 \times 10^{7}(\Omega-\mathrm{m})^{-1}$ and $10.5 \mathrm{g} / \mathrm{cm}^{3}, \mathrm{re}$ spectively. (b) Now compute the electron mobility for Ag.
The room temperature electrical conductivity of a silicon is 500 (ohm.m), The electron concentration is known to be 2.97% 1014 cm 1-3 1- compute the hole concentration where the values of mobilities of holes and electrons are 0.05 and 0.14 m2 / (Vs) 2- On the basis of the result in parta), is the specimen intrinsic, n-type intrinsic, or p - type intrinsic? Why?
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