to do this wonderful experiment of static
electricity you require a comb, a plastic
scale, balloon , wool and a bottle full of
water.
now make a hole near the base with a needle
and a thin stream of water will gush forth.
now electrically charge a comb by rubbing
it on wool and when you bring this charged
comb near the stream of water, the water stream
will be attracted to this comb. you can see
the water stream visibly rising up.
now you discharge the comb by touching it
to your body and the discharged comb when
brought near the stream does not attract the
water stream.
we can do without the comb. and just take
an ordinary scale and charge it electrically
by rubbing it on wool and this is more effective
even then the comb.
now here as you bring the charged scale or
charged straw water stream is attracted towards
it.
now instead of plastic you can charge a rubber
balloon, knock off some of the electrons and
when you bring the charged balloon near the
stream, it will visibly bend towards the balloon.
its a fun experiment and it costs very little
and simple materials to do.
