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CUET · PHYSICS · PYQ PAPER 2025

Which of the following statements are correct?
(A) Kirchhoff's loop rule represents energy conservation.
(B) Resistivity is a property of the material and depends on temperature.
(C) The electrical conductivity of the material does not depend on the material of the conductor and its temperature.
(D) The emf of a battery equals the potential difference between its terminals when the terminals are connected externally.
Choose the correct answer from the options given below:

  1. A (A) and (D) only
  2. B (A), (B) and (C) only
  3. C (A) and (B) only
  4. D (B), (C) and (D) only
Verified Solution

Answer & Solution

Correct Answer

(C) (A) and (B) only

Step-by-step Solution

Detailed explanation

(A) Correct: Kirchhoff's loop rule (or voltage law) states that the sum of potential differences around any closed loop is zero, which is a direct consequence of the conservation of energy. (B) Correct: Resistivity ( \(\rho\) ) is an intrinsic property of a material. It varies…