Ib qho khoom siv hluav taws xob yog cov khoom uas muaj qhov zoo lossis tsis zoo. Nws tuaj yeem yog ob qho tib si atoms, molecules, thiab elementary hais. Thaum cov khoom siv hluav taws xob nyob hauv qhov hluav taws xob, lub zog Coulomb ua rau nws. Tus nqi ntawm lub zog no, yog tias tus nqi ntawm lub zog ntawm lub zog ntawm ib qho chaw paub, yog xam los ntawm cov qauv hauv qab no: F=qE.
So,
peb tau txiav txim siab tias cov khoom siv hluav taws xob, uas nyob hauv qhov hluav taws xob, txav mus los ntawm lub zog Coulomb.
Tam sim no xav txog Hall nyhuv. Nws tau sim pom tias qhov sib nqus teb cuam tshuam rau kev txav ntawm cov khoom siv hluav taws xob. Sib nqus induction yog sib npaug rau lub siab tshaj plaws quab yuam uas cuam tshuam qhov ceev ntawm kev txav ntawm xws li ib tug particle los ntawm magnetic teb. Ib tug nqi particle txav nrog unit ceev. Yog hais tias cov khoom siv hluav taws xob tau ya mus rau hauv qhov chaw sib nqus nrog qhov nrawm, ces lub zog uas ua rau sab ntawm daim teb yuav yog.yog perpendicular rau particle tshaj tawm thiab, raws li, mus rau magnetic induction vector: F=q[v, B]. Txij li thaum lub zog uas ua rau ntawm cov particle yog perpendicular mus rau qhov ceev ntawm cov lus tsa suab, ces lub acceleration muab los ntawm lub zog no kuj yog perpendicular rau cov lus tsa suab, yog ib txwm acceleration. Raws li, lub rectilinear trajectory ntawm kev txav yuav tsum khoov thaum ib tug nqi particle nkag mus rau hauv magnetic teb. Yog hais tias ib tug particle yoov nyob rau hauv parallel mus rau cov kab ntawm magnetic induction, ces lub magnetic teb tsis ua rau tus nqi particle. Yog hais tias nws ya nyob rau hauv perpendicular mus rau cov kab ntawm magnetic induction, ces lub zog uas ua rau cov particle yuav siab tshaj plaws.
Nam no cia wb sau Newton's II law: qvB=mv2/R, los yog R=mv/qB, qhov twg m yog qhov loj ntawm cov particle, thiab R yog cov radius ntawm lub trajectory. Nws ua raws los ntawm qhov kev sib npaug no uas cov khoom txav mus rau hauv ib qho chaw sib xws nrog lub voj voog ntawm lub vojvoog. Yog li, lub sij hawm ntawm lub kiv puag ncig ntawm ib tug nqi particle nyob rau hauv ib lub voj voog tsis nyob ntawm qhov ceev ntawm kev txav. Nws yuav tsum tau muab sau tseg tias ib tug hluav taws xob nqi particle nyob rau hauv ib tug magnetic teb muaj ib tug tas li kinetic zog. Vim lub fact tias lub zog yog perpendicular mus rau lub zog ntawm lub particle nyob rau hauv ib qho ntawm cov ntsiab lus ntawm lub trajectory, lub zog ntawm magnetic teb uas ua rau cov particle tsis ua hauj lwm txuam nrog rau kev txav lub zog ntawm tus nqi particle.
Kev taw qhia ntawm lub zog ua haujlwm ntawm kev txav ntawm cov khoom siv hluav taws xob hauv cov hlau nplaum tuaj yeem txiav txim siab siv "sab laug tes txoj cai". Txhawm rau ua qhov no, koj yuav tsum tso koj tus ntiv tes sab laug li ntawdyog li plaub tus ntiv tes qhia cov kev taw qhia ntawm qhov ceev ntawm kev txav ntawm cov khoom siv hluav taws xob, thiab cov kab sib nqus induction yog coj mus rau qhov chaw ntawm xibtes, qhov no tus ntiv tes xoo khoov ntawm lub kaum sab xis ntawm 90 degrees yuav qhia cov kev taw qhia ntawm tus ntiv tes xoo. quab yuam uas ua rau lub cev muaj txiaj ntsig zoo. Nyob rau hauv cov ntaub ntawv uas cov particle muaj ib tug tsis zoo nqi, ces cov kev taw qhia ntawm lub zog yuav opposite.
Yog tias cov khoom siv hluav taws xob nkag mus rau hauv thaj tsam ntawm kev sib koom ua ke ntawm cov hlau nplaum thiab hluav taws xob, ces lub zog hu ua Lorentz quab yuam yuav ua rau nws: F=qE + q[v, B]. Thawj lo lus hais txog cov khoom siv hluav taws xob, thiab qhov thib ob - rau cov hlau nplaum.
