JEE Main 2021 — Magnetic Properties Of Matter Question with Solution
From: JEE Main 2021 (Online) 24th February Evening Shift
Question
A soft ferromagnetic material is placed in an external magnetic field. The magnetic domains :
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Show full solutionCorrect option: A
Correct answer
Amay increase or decrease in size and change its orientation.
Step-by-step explanation
Atoms of ferromagnetic material in unmagnetised state form domains inside the ferromagnetic material. These domains have large magnetic moment of atoms. In the absence of magnetic field, these domains have magnetic moment in different directions. But when the magnetic field is applied, domains aligned in the direction of the field grow in size and those aligned in the direction opposite to the field reduce in size and also its orientation changes.
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This is a previous-year question from JEE Main 2021, covering the Magnetic Properties Of Matter chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.