Electric potential Energy

Electric potential can be defined as the capacity for doing work which arises from position or configuration. In the electrical case, a charge will exert a force on any other charge and potential energy arises from any collection of charges. For example, if a positive charge Q is fixed at some point in space, any other positive charge which is brought close to it will experience a repulsive force and will therefore have potential energy.   When a unit of positive charge (proton) approaches a positive region of the molecule, the repulsive interaction results in an increasing positive potential energy. As a proton approaches a negative region an attractive interaction results in negative potential energy.  In this picture it shows a doorknob and the electric potential that it will cause to anything with a different electron charge such as our hands when we open doorknobs we will get shocked and it will allow us to be with the same charge as the electron.

Electromagnetism

At the subatomic level, electromagnetism is defined as the force between electrically charged particles. It is considered one of the fundamental interactions of matter. Oscillating electrical charges result in electromagnetic waves.  On a larger scale, electromagnetism is the creation of a magnetic field from the movement of electrical charges. It usually concerns the use of electric current to make electromagnets, which is called electrodynamics. Another effect is electromagnetic induction, which is using an electromagnet or changing magnetic field to induce an electric current.  At the subatomic level, electromagnetism is related to the electromagnetic force that causes the attraction and repulsion of electrically charged particles. In this picture it shows the Van de Graaf generator that was in class, the function that we used for it in Physics is when we touched the generator it shocked us every time because of us not having the same electrons and so it transferred over.  However we also had different electrons then the generator energy itself, in essence if we continued to press against it nothing would happen later because of the fact that we have shared equal electrons throughout each other.