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CSE · Paper I · Electricity & Magnetismcse-1995-subject-03-002

Ferromagnetism — UPSC Physics Optional CSE 1995 Paper I

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How does a ferromagnetic material get magnetized? Why is the demagnetization process irreversible? What is the physical significance of the magnetic hysteresis loop for a ferromagnetic material? Under what conditions the ferromagnetic materials become paramagnetic ?

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