Yintoni a resistor - iimpawu eziphambili

Abantu abaninzi, nokuba kude iingxaki physics, ubunjineli yombane, elektroniki utermine weva ezifana "ukuzabalaza" okanye igama elitsha - resistor. Noko ke, bambalwa abantu bazi ukuba yintoni na yaye oko kusetyenziswa kuwo. Ngoko ke yintoni a resistor?

Phendula lo mbuzo ulula. Resistor - njengenye yeekhomponenti zombane ixhaphakileyo kunomathotholo, izixhobo tele-ividiyo-odiyo. Uphawu iphambili resistors na ukuxhathisa wayo, nto leyo ulinganiswa yeeyunithi ohms yomlinganiselo. Kukho iintlobo ezimbini eziphambili zezi izixhobo injongo jikelele wabiza njalo-izinzile. Yintoni resistor izinzile? Kuyinto izixhobo zexabiso ezisetyenziswa izixhobo ophezulu ngexesha elisikiweyo. Ngokomthetho sebenzisa resistors injongo jikelele.

Resistance nenjongo jikelele resistors inokwahluka ngaphakathi malunga +/--10%. Le uxhathiso kuxhomekeke ekuthiwa- lobushushu ukungavumelani kwe uxhathiso (kuncwadi ezikhethekileyo kukho unciphiso TCR). Uninzi resistor standard le into entle. Oku kuthetha ukuba ukwanda ukunyuka kwamaqondo obushushu kunye ukuxhathisa.

Yintoni na ukungawi ngokwemiqathango iimpawu zayo? Enye iimpawu ezibalulekileyo resistors nga kubizwa ngokuba ukusasaza amandla. Oku ke amandla yena uyakwazi uthothe ngaphandle okuqhubekela umonakalo. Power, njengokuba sisazi, ilinganiswa ngeeyunithi zemilinganiselo njengoko Watts. Ukwazi uxhathiso wesiqhelo kunye lwangoku ayahamba na kwisekethe yombane, kungaba ibalwe kunye neziphumo. Sikhoyo kwi P ifomula = I ^ 2 * R, apho P - amandla, mna - ixabiso kul, R - resistor encinane. Kunokwenziwa isigqibo ukuba resistor enjalo ukusuka kwindawo Ngenxa ikharakhtha eyahlulayo. Yeyona yinxalenye engundoqo noshowo nawuphi zeesekethe, umsebenzi walo ongundoqo kukubonelela lomyinge (eyaziwa) ukumelana nokungena ombane ezikwisekethe ngenjongo yommiselo ombane kunye yangoku. badla ngokusebenzisa i ebizwa ngokuba yi-zokulinganisa ngenjongo yokulawula ombane kwisekethe. Yintoni na resistor lokuyenza? Esi sixhobo kanga kwinethiwekhi kwaye sitsala ezinye ombane kwemfuneko, ngokwenjenjalo ngokulinganisa imisinga emasebeni ngamnye kwisekethe kunye uzinzo ombane lokugcina. On le migaqo yenzelwe LED kunye resistor. Ukuya LED okunene ngoko nangoko kutshiswa ngokuwisa ezikhoyo kuyo, enxulumene noko xa kuthotho tokogasitelny resistor.

Kweelana le resistor ixhomekeke umbandela obonakala iqulathe. Kwakhona kuxhomekeka kwindawo shear (kokukhona ummandla umda, umlo ngaphantsi) ukusuka ubude resistor (ixesha elide na, umlo olunge ngaphezulu).

Resistors lula iphawulwe ngombala okanye seemphawu lwedijithali. Ngoncedo a zokuphawula okunjalo kunokwenzeka ukuba bafunde impahla ibaluleke gqitha kuyo nayiphi resistor, ezizezi ixabiso ukuxhathisa yayo. Funda ukuba kuthetha ntoni na umbala othile okanye nani linokuba yokundwendwela okanye umenzi isixhobo okanye umthengisi (umzekelo, kwi-website).