Vim li cas cov filament ua los ntawm tungsten?
Vim li cas cov filament ua los ntawm tungsten?

Video: Vim li cas cov filament ua los ntawm tungsten?

Video: Vim li cas cov filament ua los ntawm tungsten?
Video: Linux - Vim 2024, Kaum ib hlis
Anonim

Tungsten yog siv yuav luag tsuas yog rau makethe filaments ntawm cov qhov muag teev hluav taws xob vim nws muaj qhov taw tes siab heev (ntawm 3380 * C) vim tias qhov tunsten filament tuaj yeem khaws cia dawb-kub yam tsis tau yaj. Ntxiv mus, tunsten hashugh yooj thiab tsawg tus nqi ntawm evaporation ntawm hightemperature.

Tib neeg kuj nug, vim li cas tungsten siv los ua filament?

A: Tungsten yog siv raws li filament nyob rau hauv incandescent teeb qhov muag teev vim hais tias nws muaj lub siab tshaj plaws meltingpoint ntawm tej hlau (ntau tshaj 3400 deg. Celsius) thiab qhov kub thiab txias, qhov ntau dua efficiency thiab whiter thelight.

tungsten filament ua haujlwm li cas? Thaum hluav taws xob ntws los ntawm lub filament , lub teeb muab lub teeb tawm thiab tau kub hauv txoj kev niaj hnub. Nyob rau hauv ib tug normalincandescent teeb, lub filament yog ua los ntawm tungsten hlau thiab ib puag ncig los ntawm nonreactive ("inert") roj xws li asargon.

Ib yam li ib tug yuav nug, dab tsi yog tungsten filament?

Tungsten lub teeb qhov muag teev muaj npe rau cov hlau tungsten , cov khoom siv grey uas muaj cov ntsiab lus melting siab heev. Vim tias nws cov ntsiab lus melting siab thiab nws lub zog, nws ua rau qhov zoo filament hauv qhov muag teeb. A filament yog ametal hlau uas ci ntsa iab thaum hluav taws xob xa mus rau hauv.

Puas yog tungsten tsis zoo conductor ntawm hluav taws xob?

Vim li cas yog tungsten siv hauv hluav taws xob qhov muag teev, txawm tias nws yog ib qho tsis zoo conductor ntawm hluav taws xob ? Ob vim li cas: nws yog a neeg pluag , thiab nws yog siab ntev ntawm hightemperatures. Qhov thib ob yog vim li cas xaiv tungsten yog tias nws tsis yaj lossis deform (ntau) ntawm qhov kub siab heev ntawm lub teeb pom kev zoo.

Pom zoo: