JEE Main 2023 — Magnetic Properties Of Matter Question with Solution
From: JEE Main 2023 (Online) 8th April Evening Shift
Question
Given below are two statements: one is labelled as Assertion and the other is labelled as Reason
Assertion A : Electromagnets are made of soft iron.
Reason R : Soft iron has high permeability and low retentivity.
In the light of above, statements, choose the most appropriate answer from the options given below.
Choose an option
Show full solutionCorrect option: A
Step-by-step explanation
Both Assertion A and Reason R are correct, and R is indeed the correct explanation of A.
Electromagnets are commonly made of soft iron because of its high permeability, which allows it to easily magnetize in response to an external magnetic field. Its low retentivity is also desirable because it allows the magnetization to be easily reversed or removed once the external field is removed. This combination of properties makes soft iron ideal for electromagnets, which require rapid and efficient changes in magnetization.
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This is a previous-year question from JEE Main 2023, 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.