Ugesi ungabonwa futhi uhlolwe kanjani?

Kumjikelezo kagesi, kunezingxenye eziningi ezahlukene nezinto ezihlukene ezidinga ukulinganiswa. Amanye amathuluzi angakwazi ukukala lezi zinto ezehlukene azocacisa esilinganisweni esisodwa, kodwa amaningi azohlanganisa izilinganiso abe ithuluzi elilodwa. Izinto ongazikala zihlanganisa:

Okwamanje

Okwamanje ukuhamba kukagesi futhi kukalwa ngama-ampere (ama-amps, A). Idivaysi ekwazi ukukala i-current yaziwa ngokuthi "i-ammeter". Ukulinganisa okwamanje, idivayisi yokulinganisa kufanele ixhunywe ochungechungeni nesekhethi ukuze ama-electron adlule ku-ammeter ngesilinganiso esifanayo njengoba edlula kumjikelezo.Okwamanje kungaba kokubili okuqondile nokuguquguqukayo (okuqondile noma okuguquguqukayo). Lokhu kuhlobene nendlela ama-electron ahamba ngayo kumjikelezo, ngokuqondile; ohlangothini olulodwa; noma ukushintshanisa; emuva naphambili.

Umehluko ongaba khona (i-voltage)

I-Voltage umehluko ongaba khona phakathi kwamaphoyinti amabili kusekethe futhi ihlinzekwa yilokho esikubiza ngokuthi umthombo wamandla kusekethe; ibhethri noma isokhethi yodonga (ugesi oyinhloko). Ukuze ulinganise i-voltage, udinga ukuxhuma idivayisi ebizwa ngokuthi i-voltmeter ngokuhambisana nesekhethi.

Ukuphikiswa

Ukumelana kukalwa ngama-ohms (ohms) futhi kuhlobene nendlela impahla yekhondatha evumela ngayo okwamanje ukuthi kugeleze kuyo. Isibonelo, ikhebula elifushane linokumelana okuncane kunekhebula ende ngoba impahla encane idlula kuyo. Idivaysi ekwazi ukukala ukumelana ibizwa ngokuthi i-ohmmeter.

Okwamanje, ukumelana nomehluko ongaba khona

Kunobudlelwano phakathi kwama-volts, ama-amps nama-ohms kusekethe kagesi. Lokhu kwaziwa ngokuthi umthetho ka-Ohm, umelelwe unxantathu lapho u-V engu-voltage, u-R engu-resistance, kanti mina ngingowamanje. Isibalo salobu budlelwano sithi: amps x ohms = volts. Ngakho uma unobukhulu obubili, uzokwazi ukubala obunye.

Ukunikezwa kwamandla kagesi

Amandla akalwa ngama-watts (W). Ngokwamagama kagesi, i-watt umsebenzi owenziwa lapho i-ampere eyodwa igeleza ngevolthi eyodwa.

Ubumbano

I-polarity iwukuqondiswa kwamaphoyinti amahle kanye namabi kusekethe. Ngokobuchwepheshe, i-polarity yenzeka kuphela kumasekhethi e-DC, kodwa njengoba amapayipi amakhulu (AC) anocingo olulodwa olusekelwe phansi, lokhu kudala amatheminali ashisayo (abukhoma) namatheminali angathathi hlangothi kumasokhethi noxhumo, okungacatshangwa njengokuhlukahlukana. Njengomthetho ojwayelekile, i-polarity iboniswa ezintweni eziningi (isb. amabhethri), kodwa kungase kudingeke ukuthi kubhekwe i-polarity kwamanye amadivaysi, njengezipikha, lapho kweqiwe khona.Ngenxa yokuthi ukutholwa kwe-polarity kungabandakanya ukuhlukanisa phakathi kokuhle nokubi, futhi kushisa nokungathathi hlangothi, kunamathuluzi amaningana ahlukene angahlola lokhu, okuhlanganisa izitholi ze-voltage nama-multimeters.

ukuqhubeka

Ukuqhubeka ukuhlolwa kwesekethe ukuthola ukuthi iyasebenza noma cha. Ukuhlolwa kokuqhubeka kubonisa ukuthi ugesi ungadlula yini engxenyeni ehlolwayo noma uma isekethe yephukile ngandlela thize.

емкость

Amandla yikhono leseli ukugcina ukushaja futhi likalwa ngama-farad (F) noma ama-microfarad (µF). I-capacitor iyisakhi esingezwe kusiyingi ukuze ishaje.

imvamisa

Imvamisa yenzeka kumasekhethi e-AC futhi ikalwa nge-hertz (Hz). Imvamisa inombolo yokuzulazula komsinga oshintshanayo. Lokhu kusho ukuthi izikhathi ezingaki zamanje zishintsha isiqondiso ngesikhathi seyunithi ngayinye.