Kutheni i-capacitor ivimba i-DC kodwa idlule i-AC?

I-capacitor ziipleyiti ezimbini ezilinganayo ezingenanxibelelwano lombane phakathi kwazo. Ucingo lubotshelelwe kwipleyiti nganye. Iipleyiti zinokuba nendawo enkulu kakhulu kunye nomsantsa omncinci kakhulu phakathi kwazo. Zinokwenziwa ngamaphepha amabini efoyile kunye nomaleko wephepha phakathi kwazo kwaye yonke into isongiwe ukuze ihlale incinci. Kodwa kusezipleyiti ezimbini ezinkulu ezinemsantsa phakathi kwazo.

Ukuba uqhagamshela ibhetri kwiingcingo ezimbini, inani elincinci letshaja liza kuhamba ixesha elifutshane. Liza kutyhala ii-elektroni kwenye ipleyiti lize litsale ii-elektroni kwenye ipleyiti. Kungekudala, kukho umahluko wevolthi phakathi kweepleyiti ezimbini (ezilingana nevolthi yebhetri) kwaye akusekho current igelezayo. Imile. Leyo yinxalenye ye-DC evimbayo. Umbane othe ngqo awunakuqhubeka uhamba kuba akukho ndlela yokuba uvale umsantsa phakathi kweepleyiti.

Ngoku masithi siqhagamshela ibhetri kangangemizuzwana embalwa. Ngeli xesha lifutshane, ii-electron ezimbalwa ziyatsalwa kwipleyiti enye kwaye inani elifanayo lifakwe kwenye ipleyiti. Kukho indawo yombane phakathi kweepleyiti ezimbini ngenxa yokuba nee-electron ezininzi kwelinye icala kunelinye. Kodwa i-voltage ayikakhuli kwi-voltage yebhetri kuba siyiqhagamshele ixesha elifutshane kakhulu.

Ngoku, tshintsha ngokukhawuleza iiterminal zebhetri. Ngoku sitsala ii-electron apho besizityhale khona ngaphambili size sityhale ezinye kwelinye icala apho besizithathe khona ngaphambili. Masenze oku kangangemizuzwana emi-2. Ngoku sibuyisele imeko kwimeko eyahlukileyo kwaye sinentsimi yombane echaseneyo phakathi kweepleyiti. Kodwa sivumela umbane ukuba udlule ixesha elifutshane kakhulu. Akwanelanga ukuqokelelana ukuya kwi-voltage yebhetri.

Qhubeka uphinda loo nto, utshintsha indlela eya kwicala langoku, kodwa ukwenze ngokukhawuleza kangangokuba akuze kugcwale. Loo nto yi-alternating current. Iisekethe zisebenza ngokungathi i-current ihamba kwiiplate. Ayihambi ngenene, kodwa isekethe iziphatha ngokungathi i-AC ihamba nge-capacitor.

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Ixesha leposi: Jan-15-2026