Which metal is used to make ferromagnets ?
Which metal is used to make ferromagnets ?
The correct option is D All of these
Ferromagnetic
materials exhibit a long-range ordering phenomenon at the atomic level
which causes the unpaired electron spins to line up parallel with each other in
a region called a domain. Within the domain, the magnetic field is intense, but
in a bulk sample the material will usually be unmagnetized because the many
domains will themselves be randomly oriented with respect to one another. Ferromagnets
will tend to stay magnetized to some extent after being subjected to an
external magnetic field. This tendency to "remember their magnetic
history" is called hysteresis. Nickel, iron and cobalt are
such materials. Ferromagnetic materials exhibit a long-range
ordering phenomenon at the atomic level which causes the unpaired electron
spins to line up parallel with each other in a region called a domain. Within
the domain, the magnetic field is intense, but in a bulk sample the material
will usually be unmagnetized because the many domains will themselves be
randomly oriented with respect to one another.Ferromagnets will tend to stay
magnetized to some extent after being subjected to an external magnetic field.
This tendency to "remember their magnetic history" is
called hysteresis. Nickel, iron and cobalt are such materials.
Ferromagnetic materials exhibit a long-range ordering phenomenon at the atomic level which causes the unpaired electron spins to line up parallel with each other in a region called a domain. Within the domain, the magnetic field is intense, but in a bulk sample the material will usually be unmagnetized because the many domains will themselves be randomly oriented with respect to one another. Ferromagnets will tend to stay magnetized to some extent after being subjected to an external magnetic field. This tendency to "remember their magnetic history" is called hysteresis. Nickel, iron and cobalt are such materials. Ferromagnetic materials exhibit a long-range ordering phenomenon at the atomic level which causes the unpaired electron spins to line up parallel with each other in a region called a domain. Within the domain, the magnetic field is intense, but in a bulk sample the material will usually be unmagnetized because the many domains will themselves be randomly oriented with respect to one another.Ferromagnets will tend to stay magnetized to some extent after being subjected to an external magnetic field. This tendency to "remember their magnetic history" is called hysteresis. Nickel, iron and cobalt are such materials.
