Tus nqi ntawm µ hauv physics yog dab tsi?
Tus nqi ntawm µ hauv physics yog dab tsi?

Video: Tus nqi ntawm µ hauv physics yog dab tsi?

Video: Tus nqi ntawm µ hauv physics yog dab tsi?
Video: Vim kuv yog kuv txiv tus hluas nkauj tiam 1 daim 208 2024, Hlis ntuj nqeg
Anonim

Kev siv

cim npe tus nqi
Μ 0 magnetic tas li permeability ntawm qhov chaw nqus tsev vacuum permeability 1.25663706212
NA avogadro tsis tu ncua 6.02214076
k boltzmann tsis tu ncua 1.380649
R = NAk gas tsis tu ncua 8.314462618

Tsis tas li ntawd, μ sawv cev rau dab tsi hauv physics?

txhais thiab suav qhov piv txwv yog hu ua coefficient ntawm kev sib txhuam thiab feem ntau yog cim los ntawm Greek tsab ntawv mu ( Μ ). Ua lej, Μ = F/L. Vim tias ob qho tib si kev sib txhuam thiab kev thauj khoom raug ntsuas hauv cov ntsuas ntawm lub zog (xws li phaus lossis newtons), cov coefficient ntawm kev sib txhuam tsis muaj qhov sib txawv.

Ib yam li ntawd, chav tsev ntawm MU yog dab tsi? SI prefix micro, lub ntsiab lus ntawm 10-6 (ib lab). Μ los ntawm nws tus kheej feem ntau siv raws li " chav tsev " ntawm strain, tab sis nyob rau hauv cov ntsiab lus no nws khaws nws SI prefix lub ntsiab lus, uas yog interchangeable nrog "x 10-6"los yog "ppm" (qhov ib lab). chav tsev micron.

Ib tug kuj nug, tus nqi ntawm mu yog dab tsi?

mu tsis muaj dab tsi tus nqi : µ0 luas = 4 x 10-7 H/m.

μ sawv rau dab tsi?

Micro- (Greek tsab ntawv Μ los yog legacy micro cim µ ) yog unit prefix nyob rau hauv lub metric system denoting ib yam ntawm 106 (ib lab). Pom zoo nyob rau hauv 1960, lub prefix los ntawm Greek Μικρός (mikrós), lub ntsiab lus "me".

Pom zoo: