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184_notes:cap_discharge [2017/07/17 19:56] – created dmcpadden | 184_notes:cap_discharge [2017/07/17 20:02] (current) – dmcpadden | ||
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==== Discharging a Capacitor ==== | ==== Discharging a Capacitor ==== | ||
What happens if we connect plates with a conducting wire? Excess electrons travel to positive plate - happens quickly at first b/c lots of repelling and strong attraction, happens more slowly as time goes on. Exponential decay of excess charge. (Corresponds to decay of electric potential.) Equilibrium definition. | What happens if we connect plates with a conducting wire? Excess electrons travel to positive plate - happens quickly at first b/c lots of repelling and strong attraction, happens more slowly as time goes on. Exponential decay of excess charge. (Corresponds to decay of electric potential.) Equilibrium definition. | ||
+ | |||
+ | ==== Energy and Charge Storage ==== | ||
+ | Separation of charge = energy storage. Capacitors let you store charge, store energy. | ||
==== Examples ==== | ==== Examples ==== | ||
Capacitance for cylinders | Capacitance for cylinders |