Arrange the following materials in the increasing order of their resi…

The correct answer is Option (2) → (C), (A), (D), (B)

Resistivity is a property of the material alone. Among metals, silver is the best conductor, followed closely by copper; aluminium is poorer and platinum is much poorer. The values at room temperature are about:

    (C) Silver — \( \rho = 1.6\times10^{-8}\,\Omega\,\mathrm{m} \)
    (A) Copper — \( \rho = 1.7\times10^{-8}\,\Omega\,\mathrm{m} \)
    (D) Aluminium — \( \rho = 2.7\times10^{-8}\,\Omega\,\mathrm{m} \)
    (B) Platinum — \( \rho = 11\times10^{-8}\,\Omega\,\mathrm{m} \)

So the increasing order of resistivity is C, A, D, B.

Note: This question is from the pre-rationalised NCERT book (2022-23). The topic was removed from the latest NCERT book (2026-27), but it is still in the CUET 2026 syllabus, so do not skip it.

NCERT (Pre-rationalised edition, 2022-23):
Resistivity of Various Materials – …