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A semiconductor has the electron concent...

A semiconductor has the electron concentration of `8 xx 10^(13) "cm"^(-3)` and hole concentration `4xx10^(12) "cm"^(-3)`. Is this semiconductor n-type or p-type ? Also calculate resistivity of its material.
Given : Electron mobility =24000`"cm"^(2). "V"^(-1).s^(-1).` and hole mobility =200 `"cm"^(2)."V"^(-1). s^(-1)`

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The correct Answer is:
n type 3.25 `Omega`.cm
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