Mphamvu ya magetsi. izo zangokhala

The kufunsa kuti mphamvu ya magetsi panopa, si yophweka. Kukhala kwenikweni olondola kotheratu, n'kovuta kwambiri. Koma izi ndi imodzi mwa mfundo zofunika sayansi ndi khalidwe ena a sayansi zokhudzana ndi magetsi. Tsiku ndi tsiku, nthawi zambiri ndi ntchito mfundo imeneyi.

Popanda kupita malongosoledwe mwatsatanetsatane, kodi magetsi ndi zomwe chikhalidwe chake, kumvetsa njira ofanana tingagwiritse ntchito chitsanzo cha mtsinje. Madzi kuchokera malo apamwamba malo pansi. Chifukwa magetsi zinthu zikusinthira ndi ofanana, wasefukira kwa mfundo ndi zinthu mkulu mfundo m'munsi chitsimikizo. Ukulu wa kusiyana ndi kuthekera amatchedwa voteji, amaimira kalata U ndi amayezedwa mayunitsi wotchedwa volts.

Tiyeni tipite mmbuyo ku mtsinje. Pamene otaya madzi ndi kutalika kwa nisin pa kulanda wina kuchuluka kwa izo kuchokera kumalo osiyanasiyana. Pamene otaya panopa chikuchitika za chinthu chomwecho: zakuchuluka zina za magetsi ndi kunditumiza ku malo osiyanasiyana. Kuyeza ndondomeko iyi pali mawu akuti masiku ano ndi mtima kuchuluka kwa m'kupita magetsi pa nthawi wagawo kudzera chigawo kondakitala. Ndi fanizo njira masika, ndi kuchuluka kwa madzi wopyoza gawo asankhidwa pa nthawi unit. Akusonyeza panopa mphamvu chizindikiro Ine, kuti kuyeza pali gulu lapadera - mikuza mawu.

mfundo ziwirizi - ndi voteji ndi amperage - kuchita monga makhalidwe yaikulu ya magetsi.

Madzi otsika kuchokera pamwamba mpaka pansi, umabweretsanso mphamvu zina. Kupeza monga tsamba chopangira mphamvu, izo adzachititsa kasinthasintha wa yotsirizira ndi ntchito ina. Mofananamo, zamagetsi ntchito. Ntchito imeneyi imagwiridwa mu kachiwiri, ndi mphamvu ya magetsi. Izo zinandipangitsa izo mwa kalata P, ndipo amayezedwa Watts.

The ntchito anachita ndi madzi pa kugwa, anatsimikiza mtima kuchuluka ake akugwa mu masamba chopangira mphamvu, ndiponso amene mwalawo udzamugwere msinkhu. The madzi wamkulu msinkhu kumene mwalawo udzamugwere, ntchito zambiri imagwiridwa. Mofananamo, ndi apamwamba a voteji (kusiyana kutalika madzi) ndi amperage (i.e., madzi), m'pamenenso ntchito anachita, choncho, mphamvu ya magetsi.

Ngati mumayesa formalize maganizo amenewa, ndiye zonse zimene tingasonyezere ndi chilinganizo losavuta:

P = Ine U,

kumene: P - mphamvu ya magetsi mu Watts;

Ine - ziliri pa amperes;

U - voteji, mu volts.

Ichi ndi chilinganizo zofunika imene tingadziwire mphamvu ya magetsi.

Komabe, magetsi utuluke panopa si penapake mawu chabe ayi, koma m'madera kwenikweni kuti ndi makhalidwe awo. Makamaka, kondakitala ndi kukana, ndi voteji U ndipo panopa I umanena mu unyolo kumene DC panopa umayenda mwa lamulo kukana Ohm a. Kotero kuti mphamvu dera DC akhoza optionally kusonyezedwa ndi mawu a kukana, kapena kuganizira makhalidwe a unyolo posonyeza kuti mphamvu ya malamulo atsopano ndiponso voteji kugwirizana Ohm a.

Chifukwa chakuti dera ali ndi kukana, si onse mphamvu ntchito kuti agwire ntchito zothandiza. Gawo la izo amatayika pa ndime ya unyolo. Choncho, mphamvu ukubwera, i.e. mphamvu zoyendetsera mphamvu zazikulu kuposa mphamvu zofunikira kuchita ntchito zina. Izo ziyenera kuchitidwa otchedwa mphamvu bwino - mphamvu anapatsidwa gwero ayenera kukhala wolingana ndi mphamvu yochuluka katundu ndi mphamvu anataya mu wochititsa panopa magetsi.

Pafupifupi mukhoza kupeza momwe zinthu ndi mphamvu ya magetsi monga limanenedwa, chimene chimadalira.