RRB JE CBT2 : EXPERT
19 Jun
Type of MaterialDomain Arrangement (Without External Field)Behaviour in Magnetic FieldMagnetic Susceptibility (χ)Net Magnetic MomentRetains Magnetism?Examples
DiamagneticNo permanent domains; electron moments pairedWeakly RepelledNegative (χ < 0)ZeroNoBismuth, Copper, Silver, Gold, Zinc, Water, Mercury, Silicon
ParamagneticRandomly oriented atomic moments due to unpaired electronsWeakly AttractedSmall Positive (χ > 0)SmallNoAluminium, Platinum, Chromium, Manganese, Oxygen (O₂)
FerromagneticDomains present but randomly orientedStrongly AttractedVery Large PositiveLargeYesIron (Fe), Cobalt (Co), Nickel (Ni), Steel
FerrimagneticAdjacent domains oppose each other but unequal in magnitudeStrongly AttractedPositiveNon-ZeroYesMagnetite (Fe₃O₄), Ferrites
AntiferromagneticAdjacent domains equal and oppositeVery Weak AttractionSmall PositiveZeroNoMnO, NiO, Chromium (Cr)
Comments
* The email will not be published on the website.