Mu ma circuits a DC, a Ceramic Capacitor ali ngati phokoso ndikutsegulira dera. Ceramic disc capacitor ndi imodzi mwa zipangizo zamagetsi zowonjezera, ndipo ndi gawo la kusungirako ndalama. Zonsezi chifukwa cha kapangidwe ka capacitor, ngakhale imodzi yosavuta idzakhala ndi magetsi awiri a magetsi omwe amasiyanitsidwa ndi oyendetsa dielectric (kuphatikizapo mpweya). Tsono atatha kusinthanitsa, pakati pa magetsi awiri a magetsi amatha kupanga kusiyana (voltage, monga Kuthamanga kwamphamvu), ndipo sizingakhale magetsi kwa oyendetsa ma dielectric pakati. Koma ikhoza kukhalapo pokhapokha ngati simungathe kufika pamagetsi. Tikudziwa kuti nkhani iliyonse imakhala yosasunthika, pamene mpweya wodutsa pamtengowu umakhala wopindulitsa, ndipo mpweya umenewu umatchedwa kutaya mphamvu. Popanda kutero, pamene makina osokoneza bongo amawonongeka, sikuti ndi wotsegula. Komabe, ku sukulu ya pulayimale, kutentha koteroko sikungayambe kuyendera dera, ntchito yonse yomwe ikugwira ntchito mkati mwa mpweya wotaya, kotero capacitor akhoza kuweruzidwa ngati insulator.
Komabe, chifukwa cha kusintha kwa kayendetsedwe kake kamene kamakhala ndi nthawi, kuyendetsa ndi kutulutsa makina amafunika nthawi, ndiye kuti magetsi amatha kusintha pakati pa magetsi awiri, ndipo munda wamagetsiwo umasintha panthawi yake. Ndipotu, pakalipano kupititsa capac capacitor kudzera mwa njira yamagetsi. Pa sukulu ya pulayimale, kutseka pakali pano pamene kulola kutsogolo kwapakati kukufotokozera tanthauzo lomwelo.
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