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A semiconductor has an electron concentr...

A semiconductor has an electron concentration of `0.45 xx 10^(12) m^(-3)` and a hole concentration of `5.0 xx 10^(20) m^(-3)`. Calculate its conductivity. Given electron mobility `= 0.135 m^(2) V^(-1) s^(-1)`, hole mobility `= 0.048 m^(2) V^(-1) s^(-1)`,

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