(a) The room-temperature electrical conductivity of a

Chapter 18, Problem 18.29

(choose chapter or problem)

(a) The room-temperature electrical conductivity of a silicon specimen is 500 (#m)1 . The hole concentration is known to be 2.0 1022 m3 . Using the electron and hole mobilities for silicon in Table 18.3, compute the electron concentration. (b) On the basis of the result in part (a), is the specimen intrinsic, n-type extrinsic, or p-type extrinsic? Why? 1

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