JKPSC Prelims 2021
General Studies (Paper 1)
Answer & Explanation
Click "Check Answer" to reveal
Correct Answer:
Option D —
Drude-Lorentz theory
Understanding the TheoryThe Drude-Lorentz theory was proposed to explain how metals conduct electricity and heat. It suggests that a metal consists of a lattice of positive ions (the atoms that have lost their outer electrons) submerged in a "sea" or "gas" of free-moving electrons.
Free Electrons: These are the outermost electrons of the metal atoms that are not tied to any specific nucleus. They are free to move throughout the entire volume of the metal.
Conductivity: Because these electrons are "free," they can move easily when an electric field is applied, which is why metals are such good conductors of electricity.
Heat Transfer: These free electrons also help in transferring kinetic energy, which explains the high thermal conductivity of metals.
Understanding the Theory
Understanding the Theory
The Drude-Lorentz theory was proposed to explain how metals conduct electricity and heat. It suggests that a metal consists of a lattice of positive ions (the atoms that have lost their outer electrons) submerged in a "sea" or "gas" of free-moving electrons.
Free Electrons: These are the outermost electrons of the metal atoms that are not tied to any specific nucleus. They are free to move throughout the entire volume of the metal.
Conductivity: Because these electrons are "free," they can move easily when an electric field is applied, which is why metals are such good conductors of electricity.
Heat Transfer: These free electrons also help in transferring kinetic energy, which explains the high thermal conductivity of metals.
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.
Try another question from JKPSC JKAS 2021 Prelims
Try another question from General Studies (Paper 1)
More General Studies (Paper 1) questions
From across UPSC, JKPSC, and JKSSB papers — same subject, different years.
Consider the following statements:Assertion (A): Atharva Veda, Mahabharata, Ramayana and Gita were translated into Persian during Akbar’s...
Consider the following statements regarding CJI appointment:1. The Union Minister of Law, Justice and Company Affairs would, at the appro...
Which is the largest cold desert of the world?
Based on the Essential Commodities Act 1955, any action on imposing stock limit shall be based on price rise, and an order for regulating...
What set of three texts did Shankaracharya call Prasthanatrayi?