PHYS 1B Chapter 20: Textbook Notes
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Phys1b textbook notes chapter 20: electric potential and capacitance. V = u/q0: potential difference between 2 points: Potential difference vs. difference in potential energy: potential difference: exists solely because of a source charge and depends on the source charge distribution for potential energy to exist, must have a system of 2 or more charges. 20. 2 potential difference in a uniform electric field. Potential difference between 2 points in a uniform electric field where the points are parallel to the field lines: electric field lines always point in the direction of decreasing electric potential. Potential difference between 2 points in a uniform electric field not parallel to the field lines: change in potential energy of the charge field system: Equipotential surface: any surface consisting of a continuous distribution of points having the same electric potential: all points in a plane perpendicular to a uniform electric field are at the same electric potential.
