Lub sij hawm dielectric yog coined los ntawm William Whewell (los ntawm dia + hluav taws xob) teb rau qhov kev thov los ntawm Michael Faraday. Lub dielectric zoo meej yog cov khoom siv nrog xoom hluav taws xob conductivity (cf.
Leej twg nrhiav tau dielectric tas li?
Peter Debye Nobel tus neeg muaj txiaj ntsig nrhiav pom dielectric tas li.
Dab tsi yog qhov dielectric?
Dielectric tas li (ϵr) txhais tau tias yog qhov piv ntawm cov hluav taws xob permeability ntawm cov khoom mus rau hluav taws xob permeability ntawm qhov chaw dawb(piv txwv li, nqus tsev) thiab nws cov nqi tuaj yeem muab tau los ntawm tus qauv yooj yim capacitor.
Yuav ua li cas yog qhov dielectric tas li muab tau?
Yog C yog tus nqi ntawm lub capacitance ntawm lub capacitor uas muaj ib tug muab dielectric thiab C0 yog tus capacitance ntawm ib tug zoo tib yam capacitor nyob rau hauv lub nqus tsev vacuum, lub dielectric tas li, cim los ntawm tsab ntawv Greek kappa, κ, tsuas yog qhia raws li κ=C/C 0.
Dab tsi yog qhov dielectric tas li chav kawm 10 CBSE?
Qhov dielectric tas li ntawm ib yam khoom yog qhov piv ntawm qhov permittivity ntawm cov tshuaj mus rau qhov permittivity ntawm qhov chaw dawb. Nws qhia txog qhov uas cov khoom muaj peev xwm tuav tau hluav taws xob hauv nws.
