(Answered) A calculate the conductivity of a piece of intrinsic

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(a) Calculate the conductivity of a piece of intrinsic silicon at 300 K, if it has an intrinsic carrier density of 1.60 x 10¹⁶ m^-3. Take into account conduction by both electrons and holes.

(b) What would be the conductivity of a piece of extrinsic silicon at 300 K which has been doped p-type with a number density of acceptors equal to 6.30X10^21 m -3 , assuming it has an intrinsic carrier density of 1.60 X 10¹⁶ m^-3?

(c) Suppose a current of 50.0 mA is passed through a piece of the silicon in (b). How much of this current is carried by the electrons, and how much by the holes?

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