Question
What are ferromagnetic substances?
✓
Answer
The substances which possess unpaired electrons and high paramagnetic character and when placed in a magnetic field are strongly attracted and show permanent magnetic moment even when the external magnetic field is removed are said to be ferromagnetic. They can be permanently magnetised.
In the solid state, the metal ions of ferromagnetic substance are grouped together into small regions called domains, where each domain acts as a tiny magnet.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
How many electrons would have a total charge of 1 coulomb ?
How many moles of electrons are required for reduction of $2 \ moles$ of $Zn^{2+}$ to $Zn$?
How many faraday of electricity will be required?
→How many faraday of electricity will be required?
Write the molecular formula of the following minerals:
(i) Chalcopyrite (ii) Calamine.
(i) Chalcopyrite (ii) Calamine.
Identify 'A' and 'B' and rewrite the reactions.
Write the name and structure of one of the initiators used in free radical polymerisation.
Write the names of allotropic forms of selenium.
Sodium bisulfite is sodium salt of sulfurous acid, write down its detailed bond structure.
The following pictures show population of bands for materials having different electrical properties. Classify them as insulator, semiconductor or a metal.
What is the action of chlorine on cold and dilute sodium hydroxide.
The boiling point of benzene is $353.23 K.$ When $1.80$ gram of non$-$volatile solute was dissolved in $90$ gram of benzene. The boiling point is raised to $354.11 K.$ Calculate the molar mass of solute. $[K_b$ for benzene $2.53 \ K \ mol^{-1}]$
→