By increasing the temperature, the specific resistance of a conductor and a semiconductor (a) increases for both (b) decreases for both (c) increases, decreases (d) decreases, increases

Answer: (c). Conductor: more lattice vibration at higher T, so specific resistance increases. Semiconductor: more electron-hole pairs at higher T, so specific resistance decreases. So the answer is (c) increases, decreases.

By increasing the temperature, the specific resistance of a conductor… | JEE Main 2002 (AIEEE)

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Intrinsic & Extrinsic Semiconductors

By increasing the temperature, the specific resistance of a conductor and a semiconductor

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Answer: (c)

Conductor: more lattice vibration at higher $T$ , so specific resistance increases.
Semiconductor: more electron-hole pairs at higher $T$ , so specific resistance decreases.
So the answer is (c) increases, decreases.

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Intrinsic & Extrinsic Semiconductors question from JEE Main 2002 (AIEEE)

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