Electrical potential energy< /B>	Gravitational potential energy
The potential energy of a charged object in a electric field is a measure of the work that would have to be done in bringing it to that point from infinity. It is calculated from the potential multiplied by the charge of the object The force that would be exerted on an object in a field is equal to the differential of potential energy with respect to r.	The potential energy of a object in a gravitational field is a measure of the work that would have to be done in bringing it to that point from infinity. It is calculated from the potential multiplied by the mass of the object. The force that would be exerted on an object in a field is equal to the differential of potential energy with respect to r.
E.P.E. = 1/ 4 π ε . Q1 Q2 /r	G.P.E. = - G m1 m2 /r

Notes:

• The distinction between, the general potential and the potential energy of a specific object.