CUET · PHYSICS · PYQ PAPER 2025
Arrange the following materials in increasing order of their resistivities
(A) Tungsten
(B) Aluminium
(C) Gold
(D) Copper
Choose the correct answer from the options given below:
- A (A) < (B) < (C) < (D)
- B (D) < (C) < (B) < (A)
- C (B) < (A) < (D) < (C)
- D (C) < (D) < (B) < (A)
Answer & Solution
Correct Answer
(B) (D) < (C) < (B) < (A)
Step-by-step Solution
Detailed explanation
Resistivities (approximate, at 20°C): Copper: \(1.68 \times 10^{-8} \, \Omega \cdot m\) Gold: \(2.44 \times 10^{-8} \, \Omega \cdot m\) Aluminium: \(2.82 \times 10^{-8} \, \Omega \cdot m\) Tungsten: \(5.60 \times 10^{-8} \, \Omega \cdot m\) Increasing order: Copper < Gold <…
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