Blogpost #19

This week, we started learning about electric potential, which is not the same as electric potential energy. Like other energies we learned about (i.e. potential and kinetic), electric potential energy is a type of stored energy. It is energy of a charged object in an electric potential field, and it is measured in joules. Electric potential, which is also called "electric potential difference", is measured in volts, and its formula is electric potential energy divided by charge. Therefore, it can be deduced that a volt is joules per coulomb. The picture above is of a plug, which may have about 120 volts. This means that the plug has about 120 joules of energy per coulomb of charge.