Important Properties of Magnets, Fun with Magnets, Class 6 Science Video Lecture | Crash Course for ENGAA

hello friends this video on fun with
magnets part seven is brought to you by
exam feel calm no more fear from exam so
let us look at the next property of a
bar magnet so the next property is north
or south pole cannot be isolated this is
a very interesting property so let's say
you have a magnet now as I said that a
bad magnet will have a North Pole and
the South Pole and the two poles are
located at two extreme ends now what do
you think would happen if we break the
magnet in from between so if you break
the magnet maybe with a hammer or
something however in by some process
let's say you have broken the magnet
into two pieces so do you think that
this magnet one piece will have to not
pull the other piece will have this
output that is not the case so when you
break this magnet into multiple pieces
you see like here this entire magnet has
been broken into five different pieces
and each of them is a magnet so we can
never isolate a lot or us out culture
every time a lot or we have a
corresponding South Pole and vice-versa
so if even if you break a magnet into
ten pieces so each of those pieces would
be a magnet so you shall feed those
pieces you will have a north and a South
Pole so this is another very important
property of a bar magnet the third
property is like poles repel and unlike
poles attract so if you bring two
magnets near each other so if the unlike
poles
unlike means different poles so that
means maybe sound full of one and the
North Pole of another if they face each
other they tend to attract each other so
they three intend to come near each
other whereas if the opposite that if
the same poles that is the like poles
are near then they tend to repel each
other so they tend to go away from each
other so it is like when the two things
are different so south and not
always interact each other whereas
south-south will repel each other not
not will repel each other do something
in this north and north so they will
tend to go away from each other
similarly sound sound they retained to
go away from each other but whenever it
is north south they tend to come near
each other so that that's about the
attraction and repulsion between
different poles of magnets so this is
again a very important property of
magnet now it is very important that we
take proper care of magnets otherwise
the magnet will lose their magnetic
property so what is the most important
property that a magnet has the main most
important property is the ability to
attract the magnetic materials so if we
do not take care of it the magnet will
lose that special property
so it will no more record as a magnet so
some of the important things are they
should be stored properly because if
they are not stored properly if they are
exposed to very high temperature or
pressure or any such conditions they
might lose their magnetic property do
not heat a magnet because again when you
heat it to a very high temperature it it
kind of distorts the struggle' einman of
the structural it destroys the
structural alignment of the magnet and
that's how it loses its properties do
not have an a magnet because hammering a
magnet again makes it lose its self
special properties so now the question
Wendy's talk about the fact that they
should be stored properly so how do is 2
magnets what do we mean by proper
storage of magnets so when we talk about
storing magnet the first thing is they
should be stored at room temperature
because as I said at high temperature
magnets tend to become weaker stored in
a dry place because magnets are made up
of substances like iron so when iron is
exposed to water sometimes it causes
corrosion so to prevent these kind of
react
they should be always stored in dry
place by magnets to be kept in pairs
with unlike poles on same side now this
is important now as you can see here
let's say these are two bar magnets so
they should be placed in such a way that
the unlike poles ignored hence out they
are like together now why is it so
because it has been observed that if the
free ends or the free folds of the
magnets are left just like that so that
reduces the magnetic property of that
magnet so if you just leave a single bar
magnet just like that for a long time so
they're free ends that is there free
poles will tend to lose the magnetic
properties now the magnets will become
weaker with time due to the free poles
at the end so to prevent this from
happening bar magnets are already stored
in this fashion horseshoe magnet to be
kept with a piece of iron across the
plane poles so you see in this case you
really do not have to separate poles on
one side you have north and on the other
side you have south so you take a piece
of iron and you kind of connect the two
poles so that you know the three ends
are not there so that that's why
horseshoe magnets are pker stored in
this way keep magnets away from castles
mobiles television music system CDs and
computers so that their magnetic
properties are retained thank you
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