Tus nqi them nqi yog cov nqi uas nws qhov ntev me me, piv nrog qhov kev ncua deb mus rau lwm lub cev. Ib qho ntawm cov kev txwv ntawm coloumbs txoj cai yog tias nws tsuas yog siv tau rau taw tes nqi. … Nws yog vim qhov kev faib tawm tsis nyob ib puag ncig thaum ob lub cev coj los ua ke.
Vim li cas txoj cai coulombs siv tau rau tus nqi taw tes?
Nws hais txog qhov kev ncua deb ntawm qhov chaw, uas tsuas yog txhais rau ib qho taw tes, tsis yog kev faib tawm. Txawm li cas los xij, nws tsis siv tau rau kev txav mus los. Qhov no yog vim cov ntaub ntawv hais txog txoj haujlwm ntawm tus nqi (qhov tshwm sim los ntawm tus nqi) tsuas tuaj yeem taug kev ntawm lub teeb nrawm.
Puas yog Coulomb txoj cai tsuas ua haujlwm rau tus nqi taw tes xwb?
Koj hais yog lawm, Coulomb txoj cai tsuas ua haujlwm rau tus nqi them xwb. Yog hais tias koj muaj ib tug spherically symmetrical nqi ces koj siv tau Newton lub plhaub theorem ua ke nrog Coulomb txoj cai kom tau lub zog. Yog xav paub ntxiv txog kev faib tawm ntawm tus nqi koj yuav tsum siv Gauss txoj cai.
txhais li cas los ntawm kev them nqi hauv Coulomb txoj cai?
Coulomb's Law muab ib lub tswv yim hais txog qhov quab yuam ntawm ob nqe lus them nqi. Los ntawm lo lus point charge, peb txhais tau hais tias nyob rau hauv physics, qhov luaj li cas ntawm linear them lub cev yog heev me me raws li qhov deb ntawm lawv. Raws li qhov kev xav no, zoo li cov nqi sib tw thiab tsis zoo li cov nqi sib nyiam. …
Nyob hauv qhov twgCov xwm txheej Coulomb txoj cai siv tau?
Coulomb Txoj Cai tsuas siv tau rau point nqi. Qhov no yog vim hais tias yog tias ob lub cev raug them, ntawm ib qho kev ncua deb, lawv yuav ua rau muaj kev cuam tshuam rau lwm lub cev, qhov no yuav cuam tshuam rau cov nqi ntawm lwm lub cev nrog rau qhov kev ncua deb b / w lawv.
