Hi I am in a spot of bother. Actually I live in an under developed country where science and technology is not upto the modern standards and there is very little practical facilities. I wanna ask if I have a metal sheet of some thickness how it could be made permenantly positive and permenantly negative and is it possible that a plate is positively charge for one second and it is negatively charged in the other by any means. And lastly if one plate is positive and other is negative will they actually move toward each other and positive-positive will move away from each other. THANKS!