PHYS 1302W Lecture Notes - Lecture 1: Capacitor, Permittivity, Dielectric
Document Summary
Find the equivalent capacitance and the charge and voltage on each original. Plan: use series and parallel combinations to reduce to ceq. Reverse steps, finding charges and voltages at each step. Work must be done to charge a capacitor. That energy comes back out when the capacitor is discharged. The work done while charging: if the charge on c is q at some time and we add dq, the work is. The energy in a capacitor is stored in the electric field. In a region of space with an electric field e, the energy per h it of volume of that field is (empty space) When a non-conducting material is placed between the conductors of a. Capacitor, the capacitor will behave differently in two ways. At some large value of e, the molecules of the dielectric will be ionized creating a conducting path for charge to flow.
