When a small amount of impurity atoms are added to semiconductor, then generally its resistivity (a) may increase or decrease depending upon the percentage of doping. (b) increases. (c) decreases. (d) does not change.

Answer: (c). Doping greatly increases the number of charge carriers. So conductivity rises and resistivity decreases. So the answer is (c) decreases.

When a small amount of impurity atoms are added to semiconductor… | MHT CET 2024 (16 May, Shift 2)

Q19MHT CET 2024 · 16 MAY · SHIFT 2Easy

Intrinsic & Extrinsic Semiconductors

When a small amount of impurity atoms are added to semiconductor, then generally its resistivity

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Answer: (c)

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