Dab tsi ntawm science yog magnetism?
Dab tsi ntawm science yog magnetism?

Video: Dab tsi ntawm science yog magnetism?

Video: Dab tsi ntawm science yog magnetism?
Video: TEDxPerm - Sergey Kapitsa - Russian science after the "Big Bang" 2024, Kaum ib hlis
Anonim

Magnetism yog ib chav kawm ntawm lub cev phenomena uas yog kho los ntawm magnetic teb. Cov hluav taws xob tam sim no thiab lub sij hawm sib nqus ntawm cov khoom hauv theem pib ua rau muaj qhov sib nqus, uas ua rau lwm yam tam sim no thiab lub sijhawm sib nqus. Magnetism yog ib yam ntawm cov phenomenon ua ke electromagnetism.

Hais txog qhov no, hom kev tshawb fawb dab tsi yog magnetism?

Magnetism yog ib feem ntawm kev sib xyaw electromagnetic quab yuam. Nws yog hais txog lub cev tshwm sim los ntawm lub zog los ntawm cov hlau nplaum, cov khoom uas tsim cov teb uas nyiam los yog tawm tsam lwm yam khoom.

Tsis tas li ntawd, dab tsi ua rau hlau nplaum? Magnetism yog ua rau los ntawm kev txav ntawm cov nqi hluav taws xob. Txhua yam khoom yog tsim los ntawm cov khoom me me hu ua atoms. Yog vim li cas cov ntaub ntawv xws li ntaub los yog ntawv thiaj li hais tias tsis muaj zog hlau nplaum. Nyob rau hauv cov khoom xws li hlau, cobalt, thiab npib tsib xee, feem ntau ntawm cov electrons spin nyob rau hauv tib txoj kev.

Ib yam li ntawd ib tug yuav nug, dab tsi yog magnetism hauv kev tshawb fawb?

Hauv physics, hlau nplaum yog ib lub zog uas tuaj yeem nyiam (rub los ze zog) lossis rub tawm (them tawm) cov khoom uas muaj cov khoom sib nqus xws li hlau hauv lawv (cov khoom sib nqus). Hauv cov lus yooj yooj yim, nws yog cov cuab yeej ntawm qee yam khoom uas rub los ze dua lossis tawm tsam lwm yam khoom.

Dab tsi yog magnetic teb ua los ntawm?

Cov hlau nplaum tas mus li yog cov khoom uas tsim lawv tus kheej tsis tu ncua magnetic teb . Lawv yog ua los ntawm ferromagnetic cov ntaub ntawv, xws li hlau thiab npib tsib xee, uas tau magnetized, thiab lawv muaj ob sab qaum teb thiab sab qab teb ncej.

Pom zoo: