Find the conductivity of intrinsic Silicon at $$300$$ K. It is given that ni at $$300$$ K in Silicon is $$1.5$$×$$1010$$ $$cm-3$$ and the mobilities of electrons and holes in Silicon are $$1300$$ $$cm2$$ $$V-1s-1$$ and $$500$$ $$cm2/$$ $$V-s$$ respectively

Correct option is 14.32×10-6 mho/cm

Questions

Find the conductivity of intrinsic Silicon at 300 K. It is given that n_i at 300 K in Silicon is $1.5 \times 10^{10} {cm}^{- 3}$ and the mobilities of electrons and holes in Silicon are $1300 {cm}^{2} V^{- 1} s^{- 1}$ and 500 cm²/ V-s respectively

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4.32×10-6 mho/cm

2.32×10-5 mho/cm

3.42×10-8 mho/cm

1.32×10-5 ohm/cm

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detailed solution

Correct option is A

conductivity of a semiconductor is σ=nieμe+μh where ni= the intrinsic carrier density and μe and μh is the mobility of the electons and holes respectively here, σ=1.5×1010×1.6×10-191300+500σ=4.32×10-6 ohm-1cm-1

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Find the conductivity of intrinsic Silicon at 300 K. It is given that ni at 300 K in Silicon is 1.5×1010 cm-3 and the mobilities of electrons and holes in Silicon are 1300 cm2 V-1s-1 and 500 cm2/ V-s respectively

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Ready to Test Your Skills?

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Find the conductivity of intrinsic Silicon at 300 K. It is given that n_i at 300 K in Silicon is $1.5 \times 10^{10} {cm}^{- 3}$ and the mobilities of electrons and holes in Silicon are $1300 {cm}^{2} V^{- 1} s^{- 1}$ and 500 cm²/ V-s respectively