A semi conductor has an electron concentration of $$0.60$$×$$1011m$$−$$3$$ and a hole concentration of $$6$$×$$1019m$$−$$3$$ . Calculate its conductivity. Given electron mobility is $$0.125m2v$$−$$1s$$−$$1$$ , hole mobility is $$0.032m2v$$−$$1s$$−$$1$$

Question

A semi conductor has an electron concentration of $$0.60$$×$$1011m$$−$$3$$ and a hole concentration of $$6$$×$$1019m$$−$$3$$ . Calculate its conductivity. Given electron mobility is $$0.125m2v$$−$$1s$$−$$1$$  , hole  mobility is  $$0.032m2v$$−$$1s$$−$$1$$

Infinity Learn · Accepted Answer

Conductivity of semiconductor is the sum of the conductivities due to electrons and holes.σ$$=$$σ$$e+$$σhσ$$=nee$$μ$$e+nhe$$μhGiven : $$ne=0.60$$×$$1011m$$−$$3nh=6$$×$$1019m$$−$$3$$μ$$e=0.125m2v$$−$$1s$$−$$1$$μ$$h=0.032m2v$$−$$1s$$−$$1$$σ$$=nee$$μ$$e+nhe$$μhne<<<

A semi conductor has an electron concentration of $0.60 \times 10^{11} m^{- 3}$ and a hole concentration of $6 \times 10^{19} m^{- 3}$ . Calculate its conductivity. Given electron mobility is $0.125 m^{2} v^{- 1} s^{- 1}$ , hole mobility is $0.032 m^{2} v^{- 1} s^{- 1}$

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A semi conductor has an electron concentration of 0.60×1011m−3 and a hole concentration of 6×1019m−3 . Calculate its conductivity. Given electron mobility is 0.125m2v−1s−1 , hole mobility is 0.032m2v−1s−1

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Ready to Test Your Skills?

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A semi conductor has an electron concentration of $0.60 \times 10^{11} m^{- 3}$ and a hole concentration of $6 \times 10^{19} m^{- 3}$ . Calculate its conductivity. Given electron mobility is $0.125 m^{2} v^{- 1} s^{- 1}$ , hole mobility is $0.032 m^{2} v^{- 1} s^{- 1}$