How are positive charges different from negative charges?

The difference between negative charge and positive charge is that a negative charge is the opposite polarity of a positive charge and that charges of opposite polarities attract each other while charges of the same polarity repel each other. read more

Charge is a number, and the difference between positive and negative charges is the sign of this number (trivial, but true). Note that there is a symmetry between positive and negative charge in the following sense: if we all agreed from now on to call negative charge positive, and positive charge negative, nothing would change, and all our calculations would still work. read more

How to Determine Positive or Negative Charge By John Papiewski; Updated April 24, 2017 When you rub two different materials together, the friction between them produces a positive charge in one and a negative charge in the other. read more