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termini un atbildes

Kirhofa 1.likums Nevienā sazarotas ķēdes mezglā (savienojuma vieta, kurā ir 3 vai vairāki zari) neuzkrājas lādiņi un strāvu summa ir 0.
Kirhofa 2.likums Noslēgtā kontūrā EDS summa ir vienāda ar sprieguma krituma summu: sumE=sumIR Nosakot EDS jāņem vērā kontūŗa apiešanas virziens. Ja virzieni nav doti, tos drīkst brīvi pieņemt.
Oma likums Strāvas stiprums I ir tieši proporcionāls spriegumam U. Strāvas stiprums I ir atkarīgs no patērētāja elektriskās pretestības R. Jo lielāka ir pretestība, jo mazāka strāva plūst vadītājā. Strāvas stiprums ir apgriezti proporcionāls el.pretestībai. I=U/R
Transformators Statiska elektromagnētiska ierīce tīkla maiņsprieguma parametru maiņai un pārveidošanai.
Bipolārais tranzistors Pusvadītāju ierīce, kas ir paredzēta elektrisko svārstību ģenerēšanai, pastiprināšanai, strāvas komutācijai. Pastāv pnp un npn veidi.
Created by: ljiff
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