schoolscienceproject.blogspot.in
Static Electricity
Clinging balloons
Blow up some
balloons, tie them up and rub them for a short time on a woollen pullover. If
you put them on the ceiling, they will remain there for hours. The balloons
become electrically charged when they are rubbed, that is, they remove minute, negatively
charged particles, and called electrons, from the pullover. Because
electrically charged bodies attract those, which are uncharged, the balloons
cling to the ceiling until the charges gradually become equal. This generally
takes hours in a dry atmosphere because the electrons only flow slowly into the
ceiling, which is a poor conductor.
No comments:
Post a Comment
schoolscienceproject.blogspot.in