Electric potential energy in circuits. Here is what I know: The electric potential between two points is the work done against electric forces to move that mass of charge between those two points. What does this mean in a circuit? I know basic things about electric field, the test charge concept..and some basic physics for EE (even though our syllabus for electrical engineering did not teach us this!) Could anyone explain WHY when positive current or conventional current (positive charge) enters through the positive terminal of a circuit element with A+ and B being -, and the voltage of A WITH RESPECT TO b is positive, we say that the circuit element absorbs energy? I have asked many people but my friends and tutors werent able to answer, perhaps I am asking something irrelevent? or what? I just am not able to put the physics into my mind. All I have come up is this: The signs do not indicate direction of current or voltage drops/rises. The passive sign convention states to always ensure positive current flows out through the positive terminal. ALl I see is some analogies about water and hose and pipes which doesent fit in with D:< is this the only way circuit analysis can be learned?