Video: V in F qvB yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Sib Nqus Zog
1. Lub zog yog perpendicular rau ob lub nrawm v ntawm tus nqi q thiab magnetic teb B. Qhov loj ntawm lub zog yog F = qvB sinθ qhov twg θ yog lub kaum sab xis <180 degrees ntawm qhov nrawm thiab qhov sib nqus.
Ib yam li ntawd, V hauv qvB yog dab tsi?
ib qho hluav taws xob teb E exerts ib tug quab yuam ntawm ib tug charge q. Qhov loj yog muab los ntawm F = qvB sin(theta), qhov twg theta yog lub kaum sab xis ntawm v (lub nrawm) thiab B (lub magnetic teb). Thaum twg v thiab B yog ntawm 0 degrees (los yog 180 degrees) rau ib leeg, lub zog yog xoom.
Tsis tas li ntawd, lub zog sib nqus ua li cas? Sib nqus quab yuam . Sib nqus quab yuam , attraction los yog repulsion uas tshwm sim ntawm hluav taws xob nqi hais vim lawv cov lus tsa suab. Nws yog qhov yooj yim zog lub luag haujlwm rau cov teebmeem xws li kev ua haujlwm ntawm lub tshuab hluav taws xob thiab kev nyiam ntawm cov hlau nplaum rau hlau.
Yog li ntawd, V Cross B yog dab tsi?
Lub zog sib nqus yog proportional rau q thiab rau qhov loj ntawm vector ntoo khaub lig khoom v × B . Nyob rau hauv cov nqe lus ntawm lub kaum sab xis ϕ nruab nrab v thiab B , qhov loj ntawm lub zog sib npaug qvB sin ϕ. Ib qho txiaj ntsig zoo ntawm Lorentz quab yuam yog qhov kev txav ntawm cov khoom siv hauv ib qho chaw sib nqus.
Vim li cas magnetic force perpendicular?
Cov magnetic zog yog perpendicular mus rau qhov nrawm, thiab qhov nrawm hloov pauv hauv kev coj tab sis tsis yog qhov loj. Uniform ncig txav tau. Qhov sib xyaw ntawm qhov nrawm sib npaug mus rau qhov chaw tsis cuam tshuam, txij li lub magnetic zog yog xoom rau kev txav mus rau qhov chaw.
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