iantresman wrote:Electrons have a negative charge. Protons have a positive charged. Usually substances have equal numbers of both, so that the overall charge cancels, and a substance has no net charge.
But if we rub some substances, such as a balloon against a nylon sweater, we are able to remove some of the electrons, resulting the balloon acquiring a net positive charge, and the balloon is said to be charged. Of course the removed electrons are transferred to the sweater, and it becomes negatively charged.
I can also recommend Bill Beaty's webpage What is Charge, on his excellent websiter about electicity.
Thank you for your reply but you see this is my problem. This here is a description of the phenomena known as charge but it doesn't tell me what charge actually is. It starts by simply defining an electron as negatively charged. I knew that but why is it negatively charged and what does that mean? What is it actually. How does it differ from the proton with its positive charge?
Thank you all for your replies.