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Given density of carriers is $1 \cdot 6 \times 10^{10} / {cm}^{3}$ carrier mobilities for electrons and holes at 300 K ale 1500 and 500 ${cm}^{2} / volt - \sec$ electronic charge $= 1 \cdot 602 \times 10^{- 19} C$ Then the resistivity at 300 K is

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180kΩ−cm

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detailed solution

Correct option is D

σ=neμe+μh σ=1⋅6×1010×1⋅602×10−19[1500+500] =5⋅13×10−6/Ω−cm at 300K Resistivity =1σ=15⋅13×10−6=0⋅1951×106 =195⋅1kΩ−cm

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Given density of carriers is 1⋅6×1010/cm3 carrier mobilities for electrons and holes at 300 K ale 1500 and 500 cm2/ volt −sec electronic charge =1⋅602×10−19C Then the resistivity at 300 K is

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

free study material

Given density of carriers is $1 \cdot 6 \times 10^{10} / {cm}^{3}$ carrier mobilities for electrons and holes at 300 K ale 1500 and 500 ${cm}^{2} / volt - \sec$ electronic charge $= 1 \cdot 602 \times 10^{- 19} C$ Then the resistivity at 300 K is