14:332:221 Lecture Notes - Lecture 2: Electric Potential, Potential Energy

• School: Rutgers University
• Department: Electrical and Computer Engineering
• Course: 14:332:221
• Professor: J.Jeon

Document Summary

Force exerted on a test mass (gravitational force) Work required to be done by an external agent (field) The field moves a test mass from one place to another. V = dw / dq (the difference in work over charge) Two charged conducting plates in chemical compound or solution. Certain amount of positive charge on one plate and equal amount of negative on the other plate. The positive plate -> the battery does work. The negative plate -> the battery absorbs work. The negative indicates that the force and field are in opposite directions and positive in the same direction. Charge flowing up the electric potential hill gains its potential (voltage increases) Charge can be pumped up the electric potential hill. The rate at which charge flows with respect to time through a certain cross section. Positive: direction of flow of positive charges. Opposite to the direction of the flow of electrons that carry negative charge.