JEE Main 2016 — Magnetic Properties of Matter Question with Solution
JEE Main 2016 (03 Apr)
Question
These materials are used to make magnets for electric generators, transformer core and electromagnet core. Then it is proper to use:
Choose an option
Show full solutionCorrect option: B
Step-by-step explanation
As we know that, area of Hysteresis loop represents the net loss of energy by the material per unit volume,taken over complete cycle.
Graph is hard ferromagnetic material substance as the area of the loop is more, hence the hysteresis loss will be more and thus the value of coercivity will be high which are best suited to use as Permanent Magnet
Graph is graph of soft ferromagnetic material substance as the area of the loop is less and hence the hysterisis loss will be less which is required condition for transformer. And the value of coercivity will be low too.
Hence this material are best suited to use as Electromagnets and Transformer.
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This is a previous-year question from JEE Main 2016, 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.