PHYS 102 Lecture Notes - Lecture 4: Electric Potential Energy, Electric Potential, Woba
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W = fd = qed force: as (cid:272)ha(cid:396)ged pa(cid:396)ti(cid:272)le a(cid:272)(cid:272)ele(cid:396)ates f(cid:396)o(cid:373) poi(cid:374)t a to poi(cid:374)t (cid:271), the pa(cid:396)ti(cid:272)le"s ki(cid:374)eti(cid:272) e(cid:374)e(cid:396)gy ke. Electric potential and potential difference: electric potential (or potential) as electric potential energy per unit charge; symbol v. If positive test charge q has electric potential energy pea at some point a, the electric potential. If an object with charge q moves through a potential difference vba, its potential energy changes by an amount qvba. If not so, work would be required to move charge along surface against component of e conductor is then an equipotential surface. Christopher wong: potential near a positive charge is large and positive, and it decreases toward zero at very large distances, potential near a negative charge is negative and increases towards zero at large distances. 17. 7 capacitance: capacitor is a device that can store electric charge and consists of two conducting objects placed near each other but not touching.