Sam blew up a balloon and rubbed it on his head then he struck the balloon on the wall this was all the result of electrostatics or the transfer of charge the appearance of negative charge on a balloon is the result of its gaining electrons and these electrons must come from somewhere in this case from sam's hair electrons are transferred in any charging process in case of charging by to the charging both objects are electrically neutral and the situation obeys the law of conservation of charge how does the law of conservation of charge explain sam and his balloon