Kuverenga Kuramba Mudunhu
Pendauluan
Magetsi inzvimbo yekudzidza inoongorora mashandiro uye kupindirana kwezvikamu zvakasiyana-siyana zvemagetsi nemagetsi. Chimwe chezvinhu zvakakosha mubasa iri kuramba. Kuramba chiyero chekuramba kunosangana nemagetsi sezvaanoyerera nepakati pemuchina kana chikamu. Kugona kuverenga kuramba nemazvo hunyanzvi hwakakosha kune chero munhu anobatanidzwa mukugadzira, kugadzirisa matambudziko, kana kugadzirisa. maseketi emagetsiChinyorwa chino chichakurukura nzira dzakasiyana dzekuverenga resistance mumasekete emagetsi, ingava akatevedzana, akafanana, kana musanganiswa wezvose zviri zviviri.
Kunzwisisa Kwekutanga Kwekuramba
Kuramba kunoyerwa mu ohms (Ω), zita racho rakatumidzwa kubva kunyanzvi yefizikisi yekuGermany Georg Simon Ohm. Mutemo waOhm, inova ndiyo hwaro hwedzidziso iyi, inotsanangurwa seizvi:
\[ V = IR \]
dimana:
– (V) ndizvo tegangan listrik mumavolts (V),
– (I) ndiyo iripo magetsi emukati ampere (A),
– \( R \) ndiko kuramba kuri mu ohms (Ω).
Zvinhu Zvinokanganisa Kuramba
Kuramba kwechinhu kunoenderana nezvinhu zvakawanda, zvinosanganisira:
1. Rudzi rweChinhu: Zvinhu zvinofambisa mhepo zvine simba shoma, nepo zvinhu zvinodzivirira mhepo zvine simba guru.
2. Kureba kwechinhu: Kuramba kunoenderana nehurefu hwemubati; kureba kwemubati, kuramba kwacho kunowedzera.
3. Nzvimbo yemuchinjikwa: Kana nzvimbo yemuchinjiko wemuchina yakakura, kudzivirira kudiki.
4. Tembiricha: Muzvinhu zvakawanda, kuramba kunowedzera nekupisa kuri kuwedzera.
Kuverenga Kuramba Mudunhu
1. Dunhu reNhevedzano
Mudunhu rakatevedzana, zvikamu zvakabatana munzira imwe chete. Mwenje unoyerera kuburikidza nechikamu chimwe nechimwe wakafanana, asi voltage yese ihuwandu hwevoltages pachikamu chimwe nechimwe. Kuti uverenge resistance yese (\(R_{\text{total}} \)) mudunhu rakatevedzana, ingo sanganisa resistance yega yega:
\[ R_{\text{total}} = R_1 + R_2 + R_3 + \ldots + R_n \]
Ngatitii kune ma resistors matatu mu series circuit, ane \( R_1 = 10\ \Omega \), \( R_2 = 20\ \Omega \), uye \( R_3 = 30\ \Omega \). Zvadaro:
\[ R_{\text{total}} = 10\ \Omega + 20\ \Omega + 30\ \Omega = 60\ \Omega \]
2. Dunhu Rakafanana
Mudunhu rakafanana, zvikamu zvakabatana kuitira kuti magumo azvo ave nepfungwa mbiri dzakaenzana. Voltage pachikamu chimwe nechimwe yakafanana, asi huwandu hwemagetsi ndiwo huwandu hwemagetsi ari mubazi rega rega. Kuti uverenge resistance yese mudunhu rakafanana, shandisa fomura:
\[ \frac{1}{R_{\text{total}}} = \frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_3} + \ldots + \frac{1}{R_n} \]
Semuenzaniso, kana paine ma resistors matatu ari muchikamu chakafanana ne \( R_1 = 10\ \Omega \), \( R_2 = 20\ \Omega \), uye \( R_3 = 30\ \Omega \). Zvadaro:
\[ \frac{1}{R_{\text{total}}} = \frac{1}{10\ \Omega} + \frac{1}{20\ \Omega} + \frac{1}{30\ \Omega} \]
Kuverenga:
\[ \frac{1}{R_{\text{total}}} = 0.1 + 0.05 + 0.0333 = 0.1833 \]
Kuti:
\[ R_{\text{total}} \approx 5.45\ \Omega \]
3. Maseketi Akatevedzana uye Akasanganiswa Akafanana
Mukuita, macircuit akawanda emagetsi anoumbwa nemusanganiswa we matunhu akatevedzana uye akafananaKuti uverenge kuramba kwese kwemusanganiswa wakadaro, zvakakosha kupatsanura dunhu kuita zvikamu zvidiki, kuverenga kuramba kwese kwechikamu chimwe nechimwe, uye wobva wabatanidzazve zvabuda.
Muenzaniso weNyaya yeMusanganiswa
Ngatitii pane musanganiswa wedunhu wakaita seunotevera: ma resistors maviri \( R_1 \) uye \( R_2 \) akatevedzana, ayo anobva abatanidzwa pamwe chete ne resistor \( R_3 \). Danho rekutanga nderekuverenga resistance yechikamu che series:
\[ R_{\text{series}} = R_1 + R_2 \]
Zvadaro, kuramba kwese kwemusanganiswa wenhevedzano (\( R_{\text{series}} \)) kwakabatana pamwe chete ne \( R_3 \), saka:
\[ \frac{1}{R_{\text{total}}} = \frac{1}{R_{\text{series}}} + \frac{1}{R_3} \]
Ngatitii \( R_1 = 10\ \Omega \), \( R_2 = 20\ \Omega \), uye \( R_3 = 30\ \Omega \). Kutanga, verenga resistance ye series circuit:
\[ R_{\text{series}} = 10\ \Omega + 20\ \Omega = 30\ \Omega \]
Wobva waverenga huwandu hwese hwekudzivirira:
\[ \frac{1}{R_{\text{total}}} = \frac{1}{30\ \Omega} + \frac{1}{30\ \Omega} = \frac{1}{15\ \Omega} \]
Saka:
\[ R_{\text{total}} = 15\ \Omega \]
Nzira Yekuyedza
Kuwedzera pakuverenga kwedzidziso, kuramba kuri mudunhu kunogona kuyerwa nekuyedza uchishandisa multimeter. Matanho acho ndeaya anotevera:
1. Gadzirira Zvishandiso neCircle: Gadzirira multimeter uye iva nechokwadi chekuti circuit yadzima usati watanga kuyera resistance.
2. Kubatanidza Multimeter neCircuit: Isa ma multimeter probes pamagumo e resistor kuti ayerwe.
3. Kuyera Kuverenga: Isa multimeter ku resistance mode uye verenga kukosha kwakaratidzwa.
Mazano ekuyera
- Iva nechokwadi chekuti kubatanidza kweprobe kwakasimba uye kuti hapana maconnector asina kusimba.
- Gadzirisa multimeter kana zvichidikanwa zvichienderana nemirayiridzo yebhuku.
– Bvisa voltage yakasara nekudzima circuit usati wayera.
Mhedziso
Kuverenga resistance mudunhu inyanzvi yakakosha muinjiniya yemagetsi nemagetsi. Kungave uchishandisa kuverenga kwedzidziso kana nzira dzekuedza, kunzwisisa mashandiro anoita resistance uye kuti zvinhu zvakasiyana-siyana zvinoipesvedzera sei zvichakubatsira kugadzira nekuongorora macircuit emagetsi anoshanda uye akavimbika. Kunzwisisa nheyo dzeresistance kunopawo danho rekunzwisisa zvakadzama zvimwe zviitiko zvemagetsi, zvakaita seresistance, capacitance, inductance, nezvimwe. Nekunzwisisa kwakasimba kweresistance, tinogona kugadzirisa matambudziko uye kugadzirisa mashandiro emasystem emagetsi mumabasa akasiyana-siyana.
