Second, it has a strongly negative electric charge, whereas cytochrome c typically has a strong positive charge. This ...

Normally, the positive and negative charges cancel out because there are the same number of each. So the atom has no overall charge - it is neutral. But when you rub one, neutral, electrically ...

This leaves an area of positive charge in the desk near the plastic. The negative plastic and the positive area of the desk attract. When the balloon is rubbed on hair or clothes, electrons move onto ...

As previously mentioned, gel electrophoresis involves an electrical field; in particular, this field is applied such that one end of the gel has a positive charge and the other end has a negative ...