Yuav ua li cas xam qhov nqus ntawm cov hlau nplaum muaj zog

Txhua tus paub tias cov hlau nplaum ntawm cov hlau nplaum muaj zog loj dua li cov hlau nplaum zoo tib yam, tab sis lawv tsis paub qhov tshwj xeeb attraction quab yuam ntawm cov hlau nplaum muaj zog. Hais txog lub zog attraction ntawm cov hlau nplaum, ntau tus neeg feem ntau nug, yog li yuav ua li cas los xam qhov kev nyiam ntawm cov hlau nplaum muaj zog? Raws li kev taw qhia ntawm Strong Magnet Encyclopedia: lub zog sib nqus ntawm NdFeB hlau nplaum nws tus kheej yog 640 npaug ntawm nws qhov hnyav, uas txhais tau hais tias nws tuaj yeem nyiam 640 npaug ntawm nws qhov hnyav.

Piv txwv: Square NdFeB hlau nplaum qib yog: N38 Specifications: 30mm × 15mm × 5mm

1. Magnet ceev: kwv yees qhov ceev ntawm N38 yog li 7.5 grams ib cubic centimeter

2. Magnet hnyav: ntim x ceev (30mm x 15mm x 5mm) x 0.0075=16.875 grams

3. Magnet suction: 16.875 × 600=10125g

Magnet suction force xam mis: magnet volume × density × 600 (ntau)=suction force

Nws tuaj yeem pom tias 30mm × 15mm × 5mm square hlau nplaum tuaj yeem nqus txog 10.125kg ntawm cov khoom.

Tau kawg, qhov no tsuas yog kev kwv yees theoretical uas tej zaum yuav tsis raug. Cov ntaub ntawv tseeb yuav tsum tau txais los ntawm kev sim ua kom tau txais cov ntaub ntawv raug.

Cia peb saib cov mis rau kev xam qhov sib nqus quab yuam ntawm cov hlau nplaum ruaj khov:

F=BILsinθF yog lub zog sib nqus, tseem hu ua lub zog ampere, B yog qhov sib nqus induction, Kuv yog qhov tam sim no hauv cov hlau, L yog qhov ntev ntawm cov hlau, θ yog lub kaum sab xis ntawm B thiab Cov hlau nplaum hlau nplaum sib nqus: F=mH, qhov twg m yog qhov sib nqus ncej zog, H yog lub zog ntawm cov hlau nplaum, thiab lub zog ntawm cov hlau nplaum tsim los ntawm cov hlau nplaum yog inversely proportional rau lub voos xwmfab. ntawm qhov deb r.