(a) Referring to the table above, calculate the mean free time ? for silicon at

Question

(a) Referring to the table above, calculate the mean free time ? for silicon at room temperature.
s

(b) Your answer in part (a) is much greater than the mean free time for copper. Why, then, does pure silicon have such a high resistivity compared to copper?

Pure silicon contains approximately 1.0 (a) Referring to the table above, calculate the mean free time ? for silicon at room temperature. s (b) Your answer in part (a) is much greater than the mean free time for copper. Why, then, does pure silicon have such a high resistivity compared to copper? x 10^16 free electrons per cubic meter.

Explanation / Answer

a)

Current , I = neAv

where n = electronic density

e = charge of electrons

A = area of cross section

For this section some extra values are still needed...

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