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

Answer: (c). Conductor: carrier number is fixed, but more lattice vibrations increase collisions, so ρ increases. Semiconductor: carrier number rises sharply with T, so ρ decreases. So the answer is (c) increases, decreases.

By increasing the temperature, the specific resistance of a conductor… | MHT CET 2025 (23 Apr, Shift 2)

Q16MHT CET 2025 · 23 APR · SHIFT 2Easy

Intrinsic & Extrinsic Semiconductors

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

Show answer and solution

Answer: (c)

Conductor: carrier number is fixed, but more lattice vibrations increase collisions, so $\rho$ increases.
Semiconductor: carrier number rises sharply with $T$ , so $\rho$ decreases.
So the answer is (c) increases, decreases.

Report a mistake

More questions on Intrinsic & Extrinsic Semiconductors

Which graph shows correctly the temperature (T). dependence of resistivity (ρ) of a…MHT CET 2025 (21 Apr, Shift 1)
Consider a n-type semiconductor in which ne and nh are number of electrons and holes…JEE Main 2025 (4 Apr, Shift 2)
When a small amount of impurity atoms are added to semiconductor, then generally its…MHT CET 2024 (16 May, Shift 2)
In an extrinsic n-type semiconductor, the free electrons donated by the impurity atoms…MHT CET 2024 (15 May, Shift 1)
Which one of the following statements is true? A p-type semiconductor is doped withMHT CET 2024 (3 May, Shift 2)
If ' ne ' and ' nh ' are the number of electrons and number of holes respectively in a…MHT CET 2024 (11 May, Shift 1)
The acceptor level of a p-type semiconductor is 6 eV. The maximum wavelength of light…JEE Main 2024 (6 Apr, Shift 2)
To measure the temperature coefficient of resistivity α of a semiconductor, an electrical…JEE Main 2024 (1 Feb, Shift 2)

Intrinsic & Extrinsic Semiconductors question from MHT CET 2025 (23 Apr, Shift 2)

More questions on Intrinsic & Extrinsic Semiconductors