How Does Electron Mobility Relate to Conductivity in N-Type Silicon?

[Marcis231]

Homework Statement

Calculate the concentration of holes and electrons in n-type silicon (Si) if the resistivity is 20 Ω.cm and the electron mobility of silicon (µn) is 1300 cm2 / volt. second

Relevant Equations

I still not understand about this, i found so many formulas but I don't know which one i should use for this question

I still not understand about this, i found so many formulas but I don't know which one i should use for this question

 

[phyzguy]

Try reading this:
https://en.wikipedia.org/wiki/Electron_mobility
especially the section titled "Relation to conductivity".

 

[Marcis231]

Try reading this:
https://en.wikipedia.org/wiki/Electron_mobility
especially the section titled "Relation to conductivity".

Thank you, I got the answer from that formula after read "Relation to conductivity"