Umsebenzi namandla kagesi

Ngo Isifunda ngasinye siqhuba avaliwe compulsorily kunesithembiso double energy conversion. Ngo ukuguqulwa umthombo zamanje wenziwe iyiphi amandla (isib generator - machining) ibe amandla kagesi, kanye wamanje wesifunda uyaphinda ibe nenani amandla alingana hlobo. Kala ukuguqulwa wesifunda kagesi kunoma yiziphi ezinye izinhlobo zamandla - ukubaluleka ukusebenza yamanje.

Kodwa siyaqonda ukuthi umsebenzi kanye namandla kagesi lwamanje umsebenzi amandla kagesi ensimini, lokuhambisa amacala; ngakho-ke kulula ukubala.

Sebenza nokudluliswa kagesi in the kagesi value field balinganisela umkhiqizo idluliselwe by inani ophethe umehluko ezingaba phakathi amaphuzu ekuqaleni nasekupheleni ukudluliswa, isb ku voltage:

A = qu.

Ngokusobala, lokhu isilinganiso kungenzeka kusebenza kokuhlaziywa kwemiqondo efana umsebenzi kanye namandla kagesi lamanje. Mayelana ubukhulu kwenkokhiso, langemva esikuziphathimandla, singakwazi ahlulele ngokwanoma wamanje ogeleza yesifunda, isikhathi nesenzakalo yayo, njengoba q = It.

Ukusebenzisa ubuhlobo obunjalo, sithola ifomula esichaza enanini lomsebenzi zamanje ingxenye ehlukile yochungechunge, iphethe U voltage:

A = uit.

Umsebenzi namandla we kagesi kulinganiswa ngendlela elandelayo: uma wamanje ulinganiswa amperes, isikhathi ngemizuzwana, kanye lo voltage in volts, ukusebenza - e Joules (J).

Ngakho, 1 joule = 1 volt amperes x-1 x 1 yesibili.

Amandla kukalwa Watts (W):

1 watt = 1 joule / 1 imizuzwana, noma 1 watt = 1 x 1 volt amperes.

Umbuzo kokubala inani lomsebenzi zamanje kule ndawo ezihluke ngokuphelele ukuba umbuzo onjani eneji ujike kusayithi amandla kagesi. Lo msebenzi anesilinganiso esithile samandla, siguqulelwa nezinye izinhlobo.

Ukuthwala operation Electric wamanje kungaba ashisise ama intambo, encibilika izinsimbi, ukushintshanisa armature we motor, kubangele ukuguquka kwamakhemikhali, njll Umsebenzi amandla kagesi kuzo zonke izimo, ukunquma izinga kagesi amandla ukuguqulwa ku nezinye izinhlobo - amandla mechanical, amandla motion ezishisayo, njll

Ukwazi ukuthi amandla P = A / t, bengathola ifomula lapho amandla lamanje ibalwa endaweni Emaketangeni olulodwa

P = i-UI.

Umsebenzi namandla ka DC ingabalwa ngokusebenzisa lezi amafomula nge ammeter, voltmeter. Ekusebenteni, ekusebenzeni emkhakheni kagesi kukalwa idivayisi ekhethekile - counter. Edabula imitha, ngaphakathi iqala ukwenza isivinini engasindi aluminium disk, futhi yayo nesivinini Ukujikeleza ngokuqondile wakhona amperage kanye voltage. Inombolo linemibhikisho, okuyinto ayokwenzela isikhathi esithile, kuyosisiza ukuba bafinyelele iziphetho mayelana ephelele sikhathi umsebenzi. Ugesi amamitha ingatholakala efulethini ngamunye.

AC kukalwa usebenzisa idivayisi ekhethekile - imitha amandla. Ngo waphansi zale divayisi ahambelana izimiso voltmeter futhi ammeter.

Abaningi izinto zikagesi kanye namadivayisi lobuchwepheshe abonisa amandla abo. . Ngokwesibonelo, amandla, kungenzeka ukuthi i incandescent isibani 25 W, 75 W, njll, amandla vacuum cleaner noma yensimbi mayelana 1000 W, amandla kagesi ongafinyelela izindinganiso eziphakeme kakhulu - kufike ku kilowatts latinkhulungwane letinyentana. Kulokhu, khumbula amandla samanje, sidlula umshini othile.

Umsebenzi we-AC kubalwa ngendlela ehlukile. Ngakho, ukubala umsebenzi owenziwa kushintshana zamanje isikhathi esithile, ongasisebenzisa ifomula:

P = 1 / 2I₀U₀ cos φ. Ngokuvamile lokhu kwesibalo okulotshwe kule fomu: P = IU cos φ, lapho mina no U - namagugu voltage samanje, lincane izikhathi 2 kuka lunikeza amplitude amagugu.

Ifomula ukubala amandla AC kuyafana for the DC.

Amayunithi amandla futhi umsebenzi:

1 watt-yesibili = 1 J 1 Wh = 3600 J;

Hectowatt 1 ihora J = 360.000;

1 kWh = 3600000dzh.

Amayunithi kwamandla:

1 ampere volt = 1 W;

1 hectowatt = 100 W;

1 kilowatt = 1000 Watts.