Unformatted text preview: Chalotras 20 retirare i com > electric cument, resistance Ohm'o lau * Fleuris current = rate which charge flows current is flow of charge units : Ame - ampere 1A = 1 cls anupere must be enterved! (going in + out) * e- are the charge carriers ! e flow frm plate (t) plate + the . cys. beusmes neutral. - they mive be. mere is a Tuvie mnat s- pushes them away from the -a plate * eleuthni mane tum lam h high ekor potential !! swme is being done taken from the capauitor . ac e- move tom plak to awther, al:. AVJ (QCav). when capag tur is neutral, av, > capacihr is disc hnmede- styy niving e- stor moviny Leno motivation (furce, E-field) for tne e: to move mey all have n move together * currentis same m all pts. On a mre. + has dire urim ! mustbe umjewed at junctions . .to tight a light bulb, enerji il Mansfewal fhm the e- to radiate light! using an e- Kinetic energy! 2A- I S A outwand 2 A in , . S out I. S out 3A 2. LG I8 - 14 gang in! IA 2 in, 3 out : B = la in WHat goes in , must come out!itim + furces elect. Held is The Voitum t cmper positimt s elect field is the mihin Held due to ea, it the multiple che sys of the alcune *Elevtnc Freid = when charged wheur ate near e other, mer exets More in del in er. other -50, how do the chahye now another me il near by ? an exchange of into + Momentum mujt me place sim point !! * field madel: charged objects modify tne cpale arund them by setting up un "elettrtfieldat evryf in pale. Etoral' E, ER ..... - given ar elect. find @unt pt. force of that changed pahile can be founds FAMB L is placed into tnis det fuld ! (is not urrating it) - > tne fine at the charged pandes cun ke und in this elect field the allora tim of craie around unanje Arhar is the agent that exerts a tone on charge B d e charge A is affaring lattering the grau FYL (A mund it + this is what I then exeming to . the chalge mares an 1 change b that enten this space!! alteration even share in que field ons alt. of space * field * it it is , Turceelest.tied pt. In same direction , fure elet. field pt. in opr. dive fies Target (-)chame (has move field (ints) * Defining the Fleurne Fiend: Vector fiets ureated by changed objets at all pts in Space tinfinite in extent) a charged pamicie crcottes an em. tied pale a test chalske in mat tiend measure forte do thuis of all prr. in spare CX . t) : Fong at (x,y.t) electric field at defined h the fore an charge q * Eleuni tield due to point Chicken - using coutom Law eicur fields can be found due to M charjes . * draw ictime every point! . fed lines are only imaginary unnect all the vectus tigerner * Rules tir field lines : I. eleut. tied alWAYS . tansetical to field lines 2. dcurity of field lines is met elat. field stength 2. Red lines pt. ami mm chrastnad chroes (repelt attract) 4. lines do Na cess! S. always emeras tum chrged objects perpendicular to swrtare . - ROMA a way froma if a>0 if is then pts, away toward a if 940) it is in en pts, towaula, # mere it gyeator magnitude closer to pt. charge uralting it. + gers smaller the further away it is thm pt. charge. * dibution will deperd if the pt. charge is or Carduus + eletni tields 'Condunui in eleutn static equilibrium = no charges ave moving Charges are tree to mae , it there is elat. tields the condu. is not in cleurstati't equiti tinm : " eleum freld is all pos inside a anductm in electrometric equilibrium stir a solid cundutor: elett. tickt = + excess charges it on the Sultace* Eauistential lines curge can mae along the equipotentia) wlo dding work (no enory cos+!) field(s I to the tines eleut. field will point in direction ot e leur. pot. magnitude af E. n'eld depends on ain pot. * dictance betw.equipar. lines * teamange when E = AY necessary !! le. AV - Ed Capautors in series and in parallel a capautor sitor la circuit trement made at l vonductor pop.by an a circuit trement made at insulating lay er when capaciter i annected to bittery, Chary< millow capacitir, 1 it SV until AVE - inte the cop a a'tur is fully Chroed, There it no more further cnment 2. pamilel uitruit ES 2 ways of unnections: I series circuit C= have same Q. T CapautersPenite urd n tire electrical energy store charge ti kter-ure en enn ik ctured wy separating charge onto > plates sepamika ba same dist. . ir. pamilel Plettes, cylindrical + spherical Charge on ea. Hal is equal and or * Se pulation of charge - tl eur. field betw. plates + then a pat. dift. sv. * ckrde on plates + AV ketw. Mates are in any med ! | Q-CV por l prate carauito: \c - 7.41 units : I favad TC/Iv (= capacitance dep. charge only in ges metry of capauiter slepe = CV Fand siope = capacitance 194r berw.Plete is nergu stuned as are talliin.voltage 8 Joulombs 1 (betw. plates) : C-(F Jand a cv/com _ex. 2F + bc = v= = i = 3V V=Vatts 18 = Tv Lat C stays the same! > Changiny C means you need pirically alter the capa tot TO3 aya Gav, 0, care C = same sve total ehrgea , on 2 ca patitis is: e ' a,ra, = cave + Csave .... Q- galt (st . a= 0, + as 2. + G ro've got the t Q: t, tilavet fame sv. !! - when parallel! Cas+ca + cs... total av acns. Capacitors ... Av=Q/. "* av. - Av, + AV, Av=c There la s v Famd % Co - AC - CLIGA - Gta. Ag 6,++ cz. senes erCTS| el cirunits 7 SAN - AV. +AVZ = A + 4 G* : ce e ft, otit, * stred Enagy pot change th a capacito, mrk must be done by plaung many dire charger next to i anstner on the charged plates > wm i stored in the electn'c field!! (waiting to k n d ) How much energy ? depends on the charge , volinge Cupeitence ... et tunce U - v ory- FA - ev] .