Isayensi

Ngaphambi kokufunda lesi sihloko, qala ngokuqonda izinto eziphathelene nefiziksi , amandla alondolozayo , ukushaja kagesi , umthetho kaCoulomb kanye nezinkundla zikagesi.

Amandla kagesi angamandla alondolozayo

Ngaphandle kwamandla adonsela phansi kanye namandla entwasahlobo, esinye isibonelo samandla alondolozayo amandla kagesi. Ukuze uqonde kangcono ukuthi kungani amandla kagesi ebizwa ngokuthi amandla alondolozayo, funda incazelo elandelayo.

Ake sithi kunezingqwembe ezimbili ezishajwe ngogesi njengoba kuboniswe esithombeni, ipuleti lesobunxele lishajwe kahle kanti ipuleti lesokudla lishajwe kabi.n okungekuhle. Umcibisholo ophakathi womabili amapuleti imigqa kagesi yang ngenxa yeshaja elungile ebheke eshajeni elibi. Ishaja elungile iseduze nepuleti elilungile.

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Inkundla kagesi ngenxa yokushaja okukodwa

Ukubala insimu kagesi okukhiqizwa yishaja eyodwa enhle, isinyathelo sokuqala ukukhetha ubuso be-Gaussian obuyindilinga be-radius r lapho isikhungo se-sphere sikhona kushaja eyodwa. Indawo yobuso be-sphere ingu-4.r².

Insimu kagesi ephuma phakathi kwebhola ingena ngokuqonde ngqo ebusweni bebhola ukuze ifomula yokushintshashintsha kukagesi ibe ngu -Φ = E A. Ifomula yomthetho kaGauss ingu-Φ = Q / ε _o

Insimu kagesi endaweni ethile ekude ne-r ukusuka ekushajweni okukodwa yile:

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Ezincwadini zomthetho kaCoulomb, kwafundwa amandla phakathi kwamacala kagesi. Ekubuyekezweni kwamasimu kagesi, kwaxoxwa ngolunye uhlobo lomthetho kaCoulomb, oluvezwe ngesibalo u-F = q E, lapho u-F engamandla kagesi, u-q engamandla kagesi, kanti u-E engamandla kagesi. Kungashiwo ukuthi umthetho kaCoulomb ungumthetho wefiziksi ochaza ubudlelwano phakathi kwecala likagesi (q) necala likagesi (E).

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Imibuzo eyisibonelo namafomula omthetho wokulondolozwa kwamandla omshini, amandla angaba khona esiphethu, imishini elula

Umthetho wokulondolozwa kwamandla emishini

1. Into inamandla okusebenza angaguquki, ikhulisa amandla e-kinetic, futhi yehlisa amandla adonsela phansi. Into isesimweni….

1. idayima
2. Hamba uyephezulu
3. hamba phansi
4. ukukhuphukela phezulu kusheshisiwe

Ingxoxo
Uma amandla e-kinetic emakhulu, isivinini sento siba sikhulu, futhi uma amandla adonsela phansi emancane, ukuphakama kwento kuba phansi ngaphezu komhlaba. Lokhu kwenzeka lapho into isuka endaweni ethile ibheke phansi.

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Imibuzo eyisibonelo namafomula wamandla kagesi namandla

Amandla kanye namandla kagesi

1. Izinga likagesi nge-kWh yi-Rp. 400. Endlini, i-TV engu-100 Watt isebenza amahora ama-4 ngosuku, kanti izibani ezimbili zama-Watts angu-20 ngalinye zisetshenziswa amahora ayi-10 ngosuku. Izindleko zokusebenzisa ugesi ngenyanga (izinsuku ezingu-30)….

A. Rp. 4.800,-
B. Rp. 9.600,-
C. Rp. 19.200,-
D. Rp. 21.120,-

Ingxoxo

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Imibuzo eyisibonelo namafomula omthetho we-Ampere we-EMF ebangelwa yi-transformer

Umthetho ka-Ampere

1. Ngokusho kuka-H.C. Oersted, ugesi ukhiqiza insimu yamagnetic. Ukuthuthukisa lo mbono, ikhoyili ephethe ugesi nayo ikhiqiza insimu yamagnetic. Ikhoyili, lapho iphethe ugesi, ikhiqiza insimu yamagnetic efana naleyo ekhiqizwa yi-bar magnet...

A. toroid
I-solenoid ye-B.
C. ucingo oluhlanganisiwe
D. ikhoyili engunxande

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Insimu kagesi yinto edalwe yishaja kagesi futhi ithinta isikhala esizungeze leyo shaja kagesi, lapho ithonya lensimu kagesi lizwakala kuphela ngamanye amashaja kagesi. Uma enye ishaja kagesi isensimini kagesi edalwe yishaja kagesi, enye ishaja kagesi izwa ithonya ngesimo samandla kagesi.

Incazelo yensimu kagesi, njengoba kuchaziwe esihlokweni mayelana namasimu kagesi, ingaqondwa ngengqondo, kodwa ingacatshangwa nasengqondweni. Ukuze ubone ngeso lengqondo insimu kagesi, imigqa yensimu kagesi ivezwa. Imigqa yensimu kagesi iyiqoqo lemigqa edwetshwe nxazonke kweshaja kagesi ukukhombisa ukuba khona kwayo. Ngenxa yokuthi ihlose ukukhombisa ukuba khona kwensimu kagesi, kukhona ubudlelwano phakathi kwale migqa nensimu kagesi. Ngamanye amazwi, ubukhulu kanye nesiqondiso sensimu kagesi kungachazwa ngomdwebo wemigqa yensimu kagesi.

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Esihlokweni se-Electric Field , sixoxe ngencazelo kanye nefomula yensimu kagesi engasetshenziswa ukubala amandla ensimu kagesi akhiqizwa yishaja eyodwa kagesi, amashaja kagesi amaningana noma ngokusatshalaliswa kwamacala kagesi. Ukubalwa kwamandla ensimu kagesi akhiqizwa yishaja kagesi noma amashaja kagesi amabili kuxazululwa kalula kusetshenziswa ifomula yamandla ensimu kagesi. Uma okubaliwe kungamandla ensimu kagesi akhiqizwa ukusatshalaliswa kweshaja kagesi, ukubalwa kuyinkimbinkimbi kakhulu uma kusetshenziswa ifomula yamandla ensimu kagesi kodwa kulula uma kusetshenziswa umthetho kaGauss . Ngaphambi kokufunda umthetho kaGauss ngokujulile, qala uqonde ukugeleza kukagesi ngoba umqondo wokugeleza kukagesi usetshenziswa emthethweni kaGauss.

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3 Izibonelo zokudluliswa kokushisa ngemisebe

1. Chaza usebenzisa izibonelo, incazelo ukudluliselwa kokushisa ngemisebe ?
Ingxoxo
Ukudluliselwa kokushisa ngemisebe kuwukudluliselwa kokushisa ngendlela yamaza kagesi. Isibonelo sokudluliselwa kokushisa ngemisebe ukudluliselwa kokushisa kusuka elangeni kuya eMhlabeni. Phakathi koMhlaba nelanga kukhona i-vacuum noma cishe i-vacuum, ngakho ukushisa okuvela elangeni, ekushiseni okuphezulu, kuya emhlabeni, ekushiseni okuphansi, akukwazi ukudlula ezintweni. Ukukhanya okuvela elangeni kuya eMhlabeni kuyigagasi le-electromagnetic, njengoba kunjalo nangamanye amaza kagesi amaningi, ngakho-ke kungaphethwa ngokuthi ukushisa kuhamba kusuka elangeni kuya eMhlabeni ngesimo samaza kagesi.

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Izibonelo ezi-8 zokudluliselwa kokushisa ngokuqhutshwa komoya

1. Chaza usebenzisa izibonelo, incazelo ukudluliselwa kokushisa ngokuqhutshwa ?
Ingxoxo
Ukudluliselwa kokushisa ngokuqhutshwa komoya ukudluliselwa kokushisa okwenzeka ngokushayisana phakathi kwama-athomu/ama-molecule akha into. Isibonelo, cabanga ngebha yensimbi eshisayo. Ukuphela kwensimbi kuthintwa ilangabi bese kuthi okunye kubanjwe. Ngisho noma ukuphela kwensimbi ebanjwe kungathintani nelangabi, ngoba ukushisa kudluliselwa ngebha yensimbi, ukuphela kwensimbi ebanjwe kuzwakala kushisa. Ukushisa kudluliselwa kanjani kusuka kolunye uhlangothi lwensimbi kuya kolunye?
Isihloko sensimbi eshisayo sithola ukushisa okwengeziwe. Amakhalori amandla ahamba ngokwemvelo esuka ezintweni ezinokushisa okuphezulu aye ezintweni ezinokushisa okuphansi. Amandla engeziwe abangela ukuthi ama-athomu/ama-molecule akha insimbi anyakaze kakhulu esuka endaweni yawo yokulingana. Njengoba enyakaza kakhulu, ama-athomu/ama-molecule ashayisana nama-athomu/ama-molecule angomakhelwane, okwenza ama-athomu/ama-molecule anyakaze kakhulu futhi athole amandla amakhulu. Le nqubo iyaqhubeka kuze kube yilapho ukushisa kufinyelela esicongweni sensimbi ebanjwe.

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