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Question 30870
JEE Physics · Medium

Elasticity, Thermal Expansion, Calorimetry and Heat Transfer: Conduction MCQ

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ConductionMediumQuestion 30870

Question

Good conductors of heat are generally also good conductors of electricity because:
  1. A
    They have high density
  2. B
    Free electrons transport both heat and charge
    Correct
  3. C
    They have low specific heat
  4. D
    Their crystal structure is cubic

Correct answer

Free electrons transport both heat and charge

Explanation

In metals, free electrons carry kinetic energy (heat) and charge — Wiedemann-Franz law connects thermal and electrical conductivity.

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