Yuav ua li cas koj thiaj paub yog tias khoom raug nqi?
Yuav ua li cas koj thiaj paub yog tias khoom raug nqi?

Video: Yuav ua li cas koj thiaj paub yog tias khoom raug nqi?

Video: Yuav ua li cas koj thiaj paub yog tias khoom raug nqi?
Video: yuav ua li cas koj thiaj paub hais tias muaj neeg tso khoom.10/5/2021 2024, Kaum ib hlis
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Nyob rau hauv kev txiav txim qhia sign ib khoom nqi , koj xav tau lwm tus khoom nrog a paub zoo los tsis zoo nqi . Yog koj rub ib daim iav nrog lo lo ntxhuav, nws yuav muaj qhov zoo nqi (los ntawm convention). Yog koj rub ib daim ntawm amber nrog pluab, nws yuav muaj qhov tsis zoo nqi (tseem los ntawm kev sib tham). Siv txhua yam koj muaj ke.

Ib yam li ntawd, koj yuav nrhiav tau tus nqi ntawm ib yam khoom li cas?

Rau txiav txim tus nqi on ib khoom , txiav txim tus naj npawb ntawm ntau tshaj protons lossis tshaj electrons. Multiply tus tshaj los ntawm nqi ntawm ib tug electron los yog lub nqi proton - 1.6 x 10-19 C. Thaum kawg, kho qhov kos npe ntawm tus khoom mus + or -.

Tsis tas li ntawd, tib neeg lub cev puas zoo lossis tsis zoo? Hluav taws xob muaj nyob txhua qhov chaw, txawm nyob hauv tib neeg lub cev . Peb cov hlwb tau tshwj xeeb los ua cov khoom siv hluav taws xob. Resting cells yog tsis zoo nqi nyob rau sab hauv, thaum sab nraud ib puag ncig yog ntau dua raug nqi zoo . Qhov no yog vim qhov tsis sib xws me ntsis ntawm zoo thiab tsis zoo ions sab hauv thiab sab nraud ntawm tes.

Tsis tas li ntawd, yuav ua li cas ib qho khoom raug them tsis zoo?

Ib khoom raug them Thaum nws yog atoms poob los yog nce electron los ua ib qho ion. Piv txwv li: Hydrogen atom muaj ib qho zoo proton thiab ib qho tsis zoo hluav taws xob. Cov plaub hau zoo raug them vim nws poob electrons thiab tus pas nrig yog tsis zoo nqi vim nws tau txais electrons.

Coulomb txoj cai lij choj yog dab tsi?

Coulomb txoj cai formula Coulomb txoj cai xam qhov hluav taws xob quab yuam F nyob rau hauv newtons (N) ntawm ob tug nqi hluav taws xob q1 thiab q2 hauv coulombs ua (C) nrog qhov deb ntawm r hauv meters (m): F yog lub zog ntawm q1 thiab q2 ntsuas hauv Newton (N). k yog Coulomb cov Luas = 8,988 × 109 N⋅m2/C2.

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