this experiment is best done on a dry cold
day, not on a moist day.
take a balloon and inflate it and tie a knot.
now if you bring it near your head, it does
not attract the hair at all.
now you rub the balloon on your head and knock
off some of the electrons.
the balloon gets electrically charged and
now it will attract the hair.
your hair will stand on end because of this
charged balloon.
its a wonderful sight to see the hairs standing
on their ends. and now if you just leave the
balloon on your head it will stick to the
head like glue and it does not fall off.
now we will do another experiment.
if you take an uncharged balloon it will just
fall off by gravity.
you knock off some electrons by rubbing it
to your hair and now it will stick to your
palm. once again charge the balloon and you
can stick it to the wall.
you don't require glue or cello tape for this.
now you can charge several balloons and stick
them to the wall.
its a great experiment to be done on a dry
cold day.
on a cold day charge leaks away.
