Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

Arrange the following in the order of increasing resistivity (ρ)

(A) Copper
(B) Silver
(C) Glass
(D) Carbon (graphite)
(E) Germanium

Choose the correct answer from the options given below:

Options:

(B), (A), (D), (E), (C)

(B), (D), (A), (E), (C)

(B), (A), (D), (C), (E)

(D), (B), (E), (C), (A)

Correct Answer:

(B), (A), (D), (E), (C)

Explanation:

The correct answer is Option (1) → (B), (A), (D), (E), (C)

Typical resistivities (ρ) in Ω·m:

Silver: $1.6 \times 10^{-8}$

Copper: $1.7 \times 10^{-8}$

Germanium: $0.46$

Carbon (graphite): $3 \times 10^{-5}$

Glass: $10^{10}$

Increasing order of resistivity:

Silver < Copper < Carbon (graphite) < Germanium < Glass