Resumen de Coca

 

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½O.  Ξ vdp J  sb  sb dkuhd.

 

Rkd rbchd dpr`xaidnd pdrd rbhdoa`kdr hds bktdhpads y bktr`péds nb h`s héquan`s o`k hds nb h`s cdsbs bs hd rbchd nb tr`ut`k, sbcük hd oudh  Ξvdp  _i. pbk pdrd hd vdp`razdoaÿk nb uk haquan` bk su pukt` nb 4

bfuhhaoaÿk k`ridh (pbk) bs dpr`xaidndibktb 4= 6 V.  Ξ   _ vdp

 9  Ξ   J 

i. pbk

vdp

4

/^   ≊

i.pbk

 pbk

6

V 

4=

Hd rbchd nb tr`ut`k gdhhd bk héquan`s dhtdibktb p`hdrbs y bk héquan`s qub jabrvbk p`r nbfdl` nb 42= E ` p`r bkoaid nb 4===E. hd prboasaÿk nb hd rbchd nb tr`ut`k pubnb akorbibktdrsb o`ksanbrdfhbibktb t`idkn`.  Ξ vdp  _i. pbk ≊ >,2V + V hk (^  pbk / E )

]drd ^  pbk  ≊ >==E, nd  Ξvdp  _i. pbk  ≊ >,2V + V hk>== 9v4=,2V, qub bs hd rbchd nb tr`ut`k. Bh sackagaod sack agaodn` n` gésao` nb hd boudo boudoaÿk aÿk bs qub  Ξ vdp  J i bs dpr`xaidndibktb bh iasi` bk héquan`s k` ds`oadn`s oudkn` sb bvdp`rdk pdrd ndr bh iasi` v`huibk i`hdr cdsb`sd. Bh tbriak` V hk( ^  pbk / E ) aktr`nuob ukd o`rrbooaÿk nbfand d h`s nastakt`s v`hüibkbs i`hdrbs nb h`s cdsbs d h`s nagbrbktbs  pukt`s nb bfuhhaoaÿk k`ridh. tr`ut`k, ut`k, aknaod qub hd rbchd gukoa`kd gukoa`kd H`s vdh`rbs rbo`can`s nb  Ξvdp  _i. pbk  prbnaoj`s p`r hd rbchd nb tr`  fabk o`k héquan`s qub jabrfbk d tbipbrdturds fdlds, i`nbrdnds y dhtds, dukqub gdhhd o`k héquan`s o`k bkhdobs nb janr`cbk`. Bh vdh`r nb  Ξ vdp  J i.pbk subhb sbr o`ksanbrdfhbibktb idy`r qub bh nb  Ξgus  J i.pbk . Ξ vdp  _i. pbk vdrad bk`ribibktb nb uk o`ipubst` d `tr`, dh o`ktrdra` nb h` qub hb `ourrb d  Ξ vdp  _i. pbk. s`rprbknbktbibktb,  Ξ gusJ bs hacbrdibktb kbcdtav` pdrd bh, Jb bktrb = y =,? E5 pdrd o`kcbhdr bh Jb héquan`s d ^ y ] o`kstdktb p`r nbfdl` nb =,? E.  

^VDK_AOA@KB ^VDK_AOA@KB_ _ NB GD_B _ßHAN@-HÉT _ß HAN@-HÉTRAN@ RAN@ Iuojds sustdkoads p`sbbk iäs nb ukd g`rid sÿhand. Odnd ukd nb bstds g`rids tabkb ukd bstruoturd orastdhakd nagbrbktb y bs bstdfhb tbri`nakäiaodibktb bk uk oabrt` aktbrvdh` nb ^ y ]. Bstb gbkÿibk` sb nbk`iakd p`hai`rgasi`. Bk h`s bhbibkt`s, bh p`hai`rgasi` sb nbk`iakd dh`tr`péd.

 

Bk hd sacuabktb gacurd sb iubstrd pdrtb nbh nadcrdid nb gdsbs nbh dzugrb. D 4 dti, uk odhbktdiabkt` hbkt` nbh dzugrb `rt`rrÿifao` (sÿhan`) h` trdksg`rid, d 12¼O, bk dzugrb i`k`ohékao` (sÿhan`). Bh

 pukt` nb gusaÿk k`ridh nbh dzugrb i`k`ohékao` bs 441¼O. Hd bstdfahandn nbh dzugrb i`k`ohékao` sb bkoubktrd o`kgakdnd bk ukd rbaÿk obrrdnd nbh nadcrdid ]^. _a sb odhabktd räpandibktb bh dzugrb `rt`rrÿifao` d 4 dti, guknb d 44>¼O pdrd ndr dzugrb héquan`, sak jdfbrsb trdksg`ridn` praibr` bk dzugrb i`k`ohékao`. Dukqub bh dzugrb `rt`rrÿifao` bs akbstdfhb tbri`nakäiaodibktb bktrb 12 y 44>¼O d 4 dti, pubnb bxastar bk bstds o`knaoa`kbs nurdktb pbra`n`s nb tabip` frbvbs, nurdktb h`s oudhbs su C i bs idy`r  qub hd nbh dzugrb i`k`ohékao`. _b naob qub ukd gdsb δ bs ibtdbstdfhb o`k rbspbt` d ukd gdsb ζ d ukds ^ y ] ndnds sa C δ i ; C ζi  d bsds ^ y ], y sa hd vbh`oandn nb o`kvbrsaÿk nb δ d ζ bs h` sugaoabktbibktb hbktd o`i` pdrd pbriatar qub δ bxastd nurdktb uk pbra`n` nb tabip` sackagaodtav`. @tr` blbiph` nb ibtdbstdfahandn s`k h`s héquan`s bkgradn`s p`r nbfdl` nb sus pukt`s nb o`kcbhdoaÿk (héquan`s sufbkgradn`s) ` odhbktdn`s p`r bkoaid nb sus pukt`s nb o`kcbhdoaÿk (héquan`s s`frbodhbktdn`s) y h`s cdsbs bkgradn`s p`r nbfdl` nb sus tbipbrdturds nb o`knbksdoaÿk (vdp`rbs supbrsdturdn`s). _b pubnb bkgradr bh dcud jdstd ->=¼O y s`frbodhbktdnd jdstd 6:=¼O d 4 dti bk bh aktbrvdh` nb tbipbrdturds o`iprbknan` bktrb -?=¼O y 42=¼O. Bk dusbkoad nb pdrtéouhds nb p`hv`, sb  pubnb o`ipraiar bh vdh`r nb dcud d =¼O jdstd ukd prbsaÿk oako` vbobs supbra`r d hd prbsaÿk nb vdp`r  nbh héquan` dktbs nb qub sb pr`nuzod hd o`knbksdoaÿk. Bh ibtdk` g`rid uk o`ipubst` janrdtdn` bk hd supbrgaoab nbh jabh`, pbriatabkn` nb bstd g`rid bh s`frbodhbktdiabkt`.

 

Bh nadcrdid nb gdsbs nbh dcud bs fdstdktb iäs o`iphbl` qub h` qub sb iubstrd bk hd gacurd 3.4. D  prbsa`kbs bhbvdnds, hd g`rid jdfatudh nbh jabh` k` bs bstdfhb, y dpdrbobk `trds g`rids (Gac. 3.1f). Gélbsb bk hd bxastbkoad nb vdra`s pukt`s traphbs d prbsaÿk dhtd y bh bhbvdn` pukt` nb o`kcbhdoaÿk nbh dcud ] dhtd. Bh jabh` `rnakdra` bs bh jabh` Aj (n`knb hd j vabkb nbh jbxdc`kdh, y nbsorafb hd bstruoturd orastdhakd). Bk hd gacurd 3.1f k` sb iubstrd hds g`rids ibtd bstdfhbs jabh` Ao (oufao`) (`ftbkan` p`r  o`knbksdoaÿk nbh vdp`r nb dcud p`r nbfdl` nb -:= ¼O) y h`s AW y ZAA qub bxastbk bk hd iasid rbcaÿk nbh jabh` W. ^dip`o` sb iubstrdk hds g`rids nb fdld tbipbrdturd nb jabh` AZ, y jabh` ZA, y hd g`rid nb prbsaÿk bhbvdnésaid nbh jabh` Z, bk t`n`s bst`s ods`s, hds gr`ktbrds bktrb gdsbs k` bstäk fabk bstdfhboands. Dnbiäs nb hds g`rids orastdhakds qub vdk nbsnb bh jabh` A d jabh` ZAA bxastbk dh ibk`s n`s g`rids di`rgds nb jabh`. Hds pr`pabndnbs nb hd idtbrad d prbsa`kbs bhbvdnds rbsuhtdk bvanbktbibktb aktbrbsdktbs pdrd h`s cbÿh`c`s. Bk hd tabrrd sb nbsdrr`hhdk prbsa`kbs nb 4=>  fdr bk hd gr`ktbrd bktrb hd o`rtbzd y bh idkt`, nb 4.> x 4=7 fdr bk hd gr`ktbrd bktrb bh idkt` y bh küohb`, y nb ?,7 x 4=7 fdr bk bh obktr` nb hd tabrrd. Hd

prbsaÿk

bk

bh

obktr`

nbh

s`h

bs

nb

Bk bh

hdf hdf`rd `rdt`r t`ra` a` sb jd bst bstuna unadn` dn` hd idt idtbra bradd d prb prbsa` sa`kbs kbs supb supbra` ra`rbs rbs d

4=

 fdr.

44

4=  fdr. 7

Bstds prbsa`kbs sb dhodkzdk bk ukd obhnd nb yukqub nb nadidktb, bk hd oudh hd iubstrd sb o`ipraib iboäkaodibktb

bktrb

hds

odrds

puhands

nb

n`s

nadid idkktbs.

O`i` h`s nadidktbs s`k trdkspdrbktbs, sb pubnb bstunadr hds pr`pabndnbs ÿptaods nb hds iubstrds o`ipraiands. Hd obhnd nb yukqub nb nadidktb bs h` sugaoabktbibktb pbqubôd o`i` pdrd odfbr bk ukd idk`, y hds odrds nb nadidktb qub o`ipraibk hd iubstrd tabkbk uk naäibtr` akgbra`r d 4ii. ]drd nbtbotdr hds trdksaoa`kbs nb gdsb y nbtbriakdr hd bstruoturd nb ukd gdsb kubvd g`ridnd bk bh aktbra`r nb hd obhnd nb yukqub nb nadidktb subhb usdrsb hd nagrdooaÿk nb rdy`s Z. Hd prbsaÿk sb nbtbriakd d pdrtar nbh nbsphdzdiabkt` qub aknuob hd iasid bk hds hékbds nb ukd bsquarhd naiakutd nb rufé aktr`nuoand bk hd obhnd nb hd iubstrd. O`k hd obhnd nb yukqub nb nadidktb sb jdk `ftbkan` prbsa`kbs nb 2 ibcdfdr. Bxastbk oähouh`s tbÿrao`s qub aknaodk qub, d prbsa`kbs sugaoa sug aoabkt bktbib bibkt ktbb bhb bhbvdn vdnds, ds, t`n t`n`s `s h`s sÿh sÿhan` an`ss sb o`k o`kvab vabrtb rtbkk bk ukd g`r g`rid id ibt ibtäha ähaod. od. Bst Bst`` sb jd vbragaodn`

pdrd

hb

 A 6 , O s A , Z b , _y

`xécbk`.

Bh janr`cbk` ibtähao` sb jd nbk`iakdn` ‘bh sdkt` cradh nb hd gésaod nb dhtds prbsa`kbs’. Hds bstaidoa`kbs tbÿraods nb hd prbsaÿk rbqubrand pdrd dhodkzdrh` vdrédk o`ksanbrdfhbibktb. Bh janr`cbk` s`han` sb jd o`ipraian` jdstd ?.> ibcdfdr sak qub sb trdksg`rib bk uk ibtdh.