Which graph shows correctly the temperature (T). dependence of resistivity (ρ) of a semiconductor? (a) C (b) A (c) D (d) B

Answer: (a). For a semiconductor, carrier density rises roughly exponentially with T, so ρ falls steeply and then levels off. Graph C shows this falling, curved (decaying) shape; A and B rise (metal-like) and D is a straight line. So the answer is (a) C.

Which graph shows correctly the temperature (T). dependence of… | MHT CET 2025 (21 Apr, Shift 1)

Q17MHT CET 2025 · 21 APR · SHIFT 1Easy

Intrinsic & Extrinsic Semiconductors

Which graph shows correctly the temperature (T). dependence of resistivity $(\rho)$ of a semiconductor?

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Answer: (a)

For a semiconductor, carrier density rises roughly exponentially with $T$ , so $\rho$ falls steeply and then levels off.
Graph C shows this falling, curved (decaying) shape; A and B rise (metal-like) and D is a straight line.
So the answer is (a) C.

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