Chemical analysis of a silicon crystal reveals gallium at a level of 3.091×10−8 atomic percent. Assuming that the concentration of thermally excited charge carriers from the Si matrix is negligible, what is the density of free charge carriers (free carriers/cm3) in this Si crystal?

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MIT · Answer

You are not allowed to post answers to exam problems. Collaboration of any form is strictly forbidden in the midterms and the ﬁnal exams.

MIT2 · Answer

And I really hope that you and the other cheaters get kicked off the course. You deserve to be.

Odesa · Answer

(6.023*10^23)/(12.05)=m m*(3.091*10^-8)*(10^-2)=