Cov ntaub ntawv no puas siv hluav taws xob? Nyem rau cov lus teb ncaj qha!

Txhua hnub, peb siv cov ntaub ntawv tsis muajpaub raws nraimyuav ua li cas lawv tuav hluav taws xob tam sim no, thiab cov lus teb tsis yog ib txwm pom tseeb.

Nov yog koj daim ntawv qhia ua tiav, tsis muaj fluff rau 60+ cov khoom siv, nrog cov lus teb ncaj qha Yes / Tsis yog thiab cov kev tshawb fawb yooj yim tom qab txhua tus. Txawm hais tias koj yog ib tus kws tsim qauv tsim hluav taws xob, tus tub ntxhais kawm ntawv tackling physics, lossis DIYer kuaj kev nyab xeeb, koj yuav pom qhov tseeb hauv vib nas this. Tsuas yog click koj cov lus nug hauv qab no, thiab cov lus teb tsuas yog ib kab xwb.

Cov metalloids puas tuaj yeem ua hluav taws xob?

Yog lawm- Metalloids (piv txwv li, silicon, germanium) yog cov khoom siv hluav taws xob thiab ua hluav taws xob tsawg, zoo dua li cov insulators tab sis tsawg dua hlau.

Puas yog alumina ua hluav taws xob?

No- Alumina (Al₂O₃) yog cov khoom siv hluav taws xob uas muaj hluav taws xob tsawg heev.

Puas yog aluminium (aluminium) ua hluav taws xob?

Yog lawm- Txhuas yog cov hlau uas muaj hluav taws xob ua tau zoo (~ 60% IACS), dav siv hauv kev xaim.

graphite puas ua tau hluav taws xob?

Yog lawm- Graphite ua hluav taws xob vim delocalized electrons hauv nws cov txheej txheem txheej.

Cov dej puas tuaj yeem ua hluav taws xob?

Nws nyob ntawm.Pure / distilled / deionized dej:No. Kais / ntsev / dej hiav txwv:Yog lawm, vim yog yaj ions.

Cov hlau puas ua hluav taws xob?

Yog lawm- Tag nrho cov hlau ntshiab ua hluav taws xob zoo ntawm cov hluav taws xob dawb.

Puas yog pob zeb diamond ua hluav taws xob?

No- Pob zeb diamond ntshiab yog qhov zoo tshaj plaws hluav taws xob rwb thaiv tsev (bandgap ~ 5.5 eV).

Puas yog hlau ua hluav taws xob?

Yog lawm- Hlau yog hlau thiab ua hluav taws xob, txawm tias tsawg dua tooj liab lossis nyiaj.

Cov ionic compounds puas ua tau hluav taws xob?

Yog, tab sis tsuas yog thaum molten los yog yaj hauv dej- Khoom ionic compounds uatsis yogcoj; ions yuav tsum yog mobile.

Puas yog stainless hlau ua hluav taws xob?

Yog lawm- Stainless hlau (xws li, 304) ua hluav taws xob, tab sis ~ 20-30 lub sij hawm phem dua li tooj liab dawb vim yog alloying.

Puas yog tooj dag ua hluav taws xob?

Yog lawm- Brass (tooj liab-zinc alloy) ua hluav taws xob zoo, ~ 28-40% IACS.

Kub tuaj yeem ua hluav taws xob?

Yog lawm- Kub muaj hluav taws xob zoo heev (~ 70% IACS) thiab tiv thaiv corrosion.

mercury puas tuaj yeem ua hluav taws xob?

Yog lawm- Mercury yog cov hlau ua kua thiab ua hluav taws xob.

Cov yas puas tuaj yeem ua hluav taws xob?

No- Txheem yas yog cov insulators. (Tshwj tsis yog: conductive polymers lossis cov yas ntim, tsis yog hais txog ntawm no.)

Puas yog ntsev (NaCl) ua hluav taws xob?

Yog, thaum yaj los yog molten, Khoom NaCl uatsis yogkev coj.

Puas yog qab zib (sucrose) ua hluav taws xob?

No-Cov tshuaj qab zib tsis muaj ions thiab tsis yog-conductive.

Puas yog carbon fiber ua hluav taws xob?

Yog lawm- Cov pa roj carbon fiber ntau yog hluav taws xob ua raws li cov kev taw qhia fiber ntau.

Cov ntoo puas siv hluav taws xob?

No- Cov ntoo qhuav yog cov neeg ua haujlwm tsis zoo; me ntsis conductive thaum ntub.

Cov iav puas ua hluav taws xob?

No- iav yog ib qho insulator ntawm chav tsev kub.

Puas yog silicon ua hluav taws xob?

Yog, nruab nrab- Silicon yog ib tug semiconductor; nws ua tau zoo dua thaum doped los yog rhuab.

Puas yog nyiaj ua hluav taws xob?

Yog lawm-Silver muajsiab tshajhluav taws xob conductivity ntawm tag nrho cov hlau (~ 105% IACS).

Puas yog titanium ua hluav taws xob?

Yog, tab sis tsis zoo- Titanium ua hluav taws xob (~ 3% IACS), tsawg dua li cov hlau.

Puas yog roj hmab ua hluav taws xob?

No- Roj hmab yog ib qho hluav taws xob zoo heev.

Puas yog tib neeg lub cev ua hluav taws xob?

Yog lawm- Cov tawv nqaij, ntshav, thiab cov ntaub so ntswg muaj dej thiab ions, ua rau lub cev ua haujlwm (tshwj xeeb yog cov tawv nqaij ntub dej).

Puas yog nickel ua hluav taws xob?

Yog lawm- Nickel yog hlau nrog nruab nrab conductivity (~ 25% IACS).

Daim ntawv puas muaj hluav taws xob?

No- Daim ntawv qhuav yog tsis-conductive; me ntsis conductive thaum damp.

Puas yog potassium ua hluav taws xob?

Yog lawm- Potassium yog cov hlau alkali thiab cov neeg xyuas pib zoo.

Puas yog nitrogen ua hluav taws xob?

No- Nitrogen roj yog ib qho insulator; kua nitrogen kuj tsis yog-conductive.

Puas yog sulfur (sulfur) ua hluav taws xob?

No- Sulfur yog cov hlau tsis muaj hlau thiab cov neeg ua haujlwm tsis zoo.

Puas yog tungsten ua hluav taws xob?

Yog lawm- Tungsten ua hluav taws xob (~ 30% IACS), siv hauv filaments.

Puas magnesium ua hluav taws xob?

Yog lawm- Magnesium yog hlau nrog zoo conductivity (~ 38% IACS).

Puas yog txhuas coj hluav taws xob?

Yog, tab sis tsis zoo- Lead muaj cov conductivity tsawg (~ 8% IACS).

Puas yog calcium ua hluav taws xob?

Yog lawm- Calcium yog hlau thiab ua hluav taws xob.

Puas yog carbon ua hluav taws xob?

Yog (graphite form)- Amorphous carbon: tsis zoo. Graphite: zoo. Pob zeb diamond: tsis muaj.

Puas muaj chlorine ua hluav taws xob?

No- chlorine gas yog tsis-conductive; ionic chlorides (piv txwv li, NaCl) coj thaum yaj.

Puas yog tooj liab ua hluav taws xob?

Yog lawm- Copper muaj cov conductivity siab heev (~ 100% IACS), tus qauv rau kev xaim.

Puas yog zinc ua hluav taws xob?

Yog lawm- Zinc yog hlau nrog nruab nrab conductivity (~ 29% IACS).

Puas yog platinum ua hluav taws xob?

Yog lawm- Platinum ua hluav taws xob zoo (~ 16% IACS), siv hauv kev sib cuag muaj kev ntseeg siab.

Cov roj puas ua hluav taws xob?

No- Mineral thiab zaub roj yog cov insulators zoo heev.

Puas yog helium ua hluav taws xob?

No- Helium yog cov roj zoo thiab tsis muaj hluav taws xob.

Puas yog hydrogen ua hluav taws xob?

No- Hydrogen gas yog tsis-conductive; metallic hydrogen (hnyav siab) ua.

Puas yog huab cua ua hluav taws xob?

No- Cua qhuav yog ib qho insulator; nws ionizes nyob rau hauv high voltage (xiav).

Puas yog neon ua hluav taws xob?

No- Neon yog cov roj zoo thiab tsis ua haujlwm.

Puas yog cawv (ethanol/isopropyl) ua hluav taws xob?

No- Cov dej cawv ntshiab tsis muaj kev cuam tshuam; cov dej taug qab tuaj yeem tso cai me ntsis kev coj ua.

Cov dej khov puas ua hluav taws xob?

No- Cov dej khov ntshiab yog cov neeg ua haujlwm tsis zoo; impurities nce conductivity me ntsis.

Puas yog oxygen ua hluav taws xob?

No- Cov pa roj carbon monoxide tsis yog cov khoom siv hluav taws xob.

Puas yog tin ua hluav taws xob?

Yog lawm- Tin yog hlau nrog nruab nrab conductivity (~ 15% IACS).

Puas yog xuab zeb ua hluav taws xob?

No- Cov xuab zeb qhuav (silica) yog ib qho insulator.

Puas yog pob zeb ua hluav taws xob?

Tsis yog (thaum qhuav)- Qhuav pob zeb yog tsis-conductive; Cov pob zeb ntub dej ua rau cov dej noo thiab ions.

Puas yog fiberglass ua hluav taws xob?

No- Fiberglass (iav fibers + resin) yog ib qho insulator.

Puas yog silicone ua hluav taws xob?

No- Standard silicone yog non-conductive; conductive silicone muaj nyob, tab sis tsis tau hais.

Puas yog tawv ua hluav taws xob?

No- tawv tawv yog tsis-conductive; nws ua thaum ntub.

Puas yog iodine ua hluav taws xob?

No- Khoom los yog gaseous iodine yog cov tsis yog tus coj.

Puas yog solder ua hluav taws xob?

Yog lawm- Solder (tin-lead lossis txhuas-dawb alloys) yog tsim los ua hluav taws xob.

Puas yog JB Weld ua hluav taws xob?

No- Standard JB Weld epoxy yog non-conductive.

Puas yog super kua nplaum (cyanoacrylate) ua hluav taws xob?

No- Super kua nplaum yog ib qho insulator.

Cov kua nplaum kub puas ua hluav taws xob?

No- Kub yaj kua nplaum yog non-conductive.

Cov kab xev puas ua hluav taws xob?

No- Cov nplaum thiab thaub qab yog insulators.

Cov kab xev hluav taws xob puas siv hluav taws xob?

No- Hluav taws xob daim kab xev yog tsim los raurwb thaiv tsev, tsis coj.

Puas yog WD-40 ua hluav taws xob?

No- WD-40 tsis yog-conductive thiab feem ntau siv los hloov dej hauv cov tshuab hluav taws xob.

Cov hnab looj tes nitrile/latex puas siv hluav taws xob?

No- Ob leeg yog cov khoom siv hluav taws xob zoo heev thaum tsis zoo thiab qhuav.

Puas yog thermal paste ua hluav taws xob?

Feem ntau, tsis muaj. Standard thermal paste yoghluav taws xob insulating. (Tshwj tsis yog: kua hlau los yog nyiaj-raws li conductive pastes.)

Puas yog dej deionized (DI) ua hluav taws xob?

No- DI dej muaj ions tshem tawm thiab muaj zog heev.

Puas yog acid/base ua hluav taws xob?

Yog lawm- Cov kua qaub thiab cov hauv paus muaj zog dissociate rau hauv ions thiab ua hluav taws xob hauv kev daws teeb meem.

Puas covalent compounds ua hluav taws xob?

No- Covalent compounds (piv txwv li, qab zib, cawv) tsis tsim ions thiab tsis yog-conductive.

Puas yog hlau nplaum / hlau (raws li hlau nplaum) ua hluav taws xob?

Yog lawm- Cov hlau nplaum feem ntau yog ua los ntawm cov hlau conductive (hlau, npib tsib xee, thiab lwm yam).

Cov hluav taws puas ua hluav taws xob?

Yog, qaug zog- Nplaim muaj ions thiab tuaj yeem ua nyob rau hauv qhov hluav taws xob siab (piv txwv li, arc los ntawm hluav taws).

Cov ntshav puas muaj hluav taws xob?

Yog lawm- Ntshav muaj ntsev thiab yog ib tug zoo conductor.

Kapton daim kab xev puas siv hluav taws xob?

No- Kapton (polyimide) daim kab xev yog cov khoom siv hluav taws xob zoo heev.

Puas yog carbon fiber ua hluav taws xob?

Yog lawm- Ib yam li carbon fiber; heev conductive raws fibers.

Puas steel ua hluav taws xob?

Yog lawm- Tag nrho cov hlau (carbon, stainless) ua hluav taws xob, txawm tias alloying txo kev ua haujlwm.

Puas yog lithium ua hluav taws xob?

Yog lawm- Lithium hlau yog heev conductive.

Puas yog super kua nplaum ua hluav taws xob?

Tsis yog,tsis-conductive.

Puas yog epoxy ua hluav taws xob?

No- Txheem epoxy yog insulating; conductive epoxy muaj nyob, tab sis tsis tus qauv.

Cov xim liab qab conductive puas ua hluav taws xob?

Yog lawm- Tshwj xeeb tsim los ua hluav taws xob.

Puas yog Loctite conductive nplaum ua hluav taws xob?

Yog lawm- Cov khoom siv hluav taws xob hluav taws xob yog tsim rau kev sib txuas thiab kev sib txuas.

Puas yog hluav taws xob conductive silicone / yas ua hluav taws xob?

Yog lawm- Formulated nrog fillers (carbon, silver) los pab ua conduction.

Cov av puas muaj hluav taws xob?

Yog, variably- Nyob ntawm noo noo, ntsev, thiab av nplaum cov ntsiab lus; ntsuas los ntawm EC meters.

Cov dej distilled puas siv hluav taws xob?

No- Siab ntshiab, tsis muaj ions = non-conductive.

Cov dej ntshiab puas siv hluav taws xob?

No- Ib yam li distilled / deionized.

Cov dej kais dej puas siv hluav taws xob?

Yog lawm- Muaj cov ntxhia hauv yaj thiab ions.

Cov dej qab ntsev puas ua hluav taws xob?

Yog lawm- Cov ntsiab lus ion siab = tus neeg xyuas pib zoo heev.

Puas yog aluminium foil ua hluav taws xob?

Yog lawm-Ntshiab aluminium, ua tau zoo heev.

Puas yog steelstik (epoxy putty) ua hluav taws xob?

No- Cov khoom siv tsis-conductive filler.

Puas yog silicon carbide (SiC) ua hluav taws xob?

Yog, nruab nrab- Wide-bandgap semiconductor; siv nyob rau hauv high-power electronics.

Puas yog pob zeb ua hluav taws xob?

Tsis muaj (qhuav) / Yog (ntub).

Puas yog tawv ua hluav taws xob?

Tsis muaj (qhuav). Cov tawv tawv qhuav tsis ua hluav taws xob, thaum cov tawv tawv ntub vim dej ua hluav taws xob.

Puas yog iodine ua hluav taws xob?

No. Iodine tsis ua hluav taws xob.

Puas yog hluav taws xob conductive yas ua hluav taws xob?

Yog lawm. Hluav taws xob conductive yas ua hluav taws xob.

Puas yog Loctite hluav taws xob conductive nplaum ua hluav taws xob?

Yog lawm. Loctite hluav taws xob conductive nplaum ua hluav taws xob.

Puas yog platinum ua hluav taws xob?

Yog lawm. Platinum ua hluav taws xob.

Cov roj puas ua hluav taws xob?

No. Roj ua hluav taws xob.

Cov hnab looj tes nitrile puas siv hluav taws xob?

No. Nitrile hnab looj tes ua hluav taws xob.

Puas yog silicone ua hluav taws xob?

No. Silicone tsis ua hluav taws xob.

Cov lus qhia ntxiv txog hluav taws xob conductivity

Hauv qab no yog cov ntsiab lus tseem ceeb uas tsom mus rau hluav taws xob conductivity, tsuas yog nyem rau hauv kom paub meej ntxiv:

· Conductivity: txhais, sib npaug, ntsuas, thiab kev siv

· Lub ntsuas hluav taws xob ntsuas hluav taws xob: txhais, cov ntsiab lus, units, calibration

· Txhua hom hluav taws xob Conductivity Meters Koj Yuav Tsum Paub

· Unveiling qhov kev sib raug zoo ntawm qhov kub thiab txias