Thiab koj paub yog vim li cas cov khoom siv ob-hlau?

Niaj hnub nimno civilization tshwm sim nyob rau hauv ib feem vim hais tias ntawm qhov hluav taws xob lub zog hais tias tus txiv neej muaj kev tswj los mus muab nws tus kheej rau cov kev pab. Hluav taws xob cov khoom siv cia rau kho lub suab thiab pom tau qhov sib sib txuas lus ntawm tej thaj chaw deb qhov chaw, lawv scatter lub qhov tsaus ntuj thiab ua rau peb sov nyob rau hauv lub caij ntuj no. Nws ua rau tsis muaj kev nkag siab rau sau tag nrho cov cheeb tsam ntawm kev daim ntawv thov txog hluav taws xob, vim hais tias nws yog lub npe hu rau txhua leej txhua tus. Txawm li cas los, rau ib co neeg uas tsis muaj hluav taws xob engineering kev kawm ntawv, nws tseem yog ib tug paub tsis meej yog vim li cas lub khoom siv muaj ib tug muab ob npaug rau hlau. Tseeb, lub hwj chim plugs ntawm tsev neeg hluav taws xob khoom siv yog nruab nrog xwb ob pins (koom haum pab hauv av hu tsis tau coj mus rau hauv tus account), es peb los yog plaub. Tej zaum nws tau ua nyob rau hauv thiaj li yuav cawm tau (tom qab ob tsawg tshaj li peb)? Wb soj ntsuam.

Tos ib phau ntawv

Yuav kom teb tau lo lus nug, "Yog vim li cas muaj ob hluav taws xob hlau" - koj yuav tsum nco ntsoov cov qauv rau kev hluav taws xob. Muaj ntau cov xib fwb, los ntawm defining lub sij hawm "hluav taws xob tam sim no", nws yog muab piv nrog rau cov dej ntws. Tej kev sib piv yog heev ua tau, ntawm chav kawm, nrog rau tej kev reservations. Peb siv nws tus kheej.

Qhia txog ib tug channel los ntawm kev uas cov dej ntws. Nyob rau ib tug seem ntawm cov hniav muaj ib tug dej zeb, transforming ntuj rog tsiv mus nyob dej masses rau hauv pab ua hauj lwm. Obviously, tom qab dhau los ntawm cov hniav ceev yog me ntsis txo. Qhov no tus nqi nyob rau hauv ob peb yam tseem ceeb, ces nws tej zaum yuav tsis hnov "los ntawm qhov muag", tab sis nws yog. Obviously, cov hniav yuav tig xwb nyob rau hauv cov kev tshwm sim hais tias cov kua yuav tsiv mus nyob. Thiab qhov no, nyob rau hauv lem, yog tau thaum muaj ib tug sab tej yam (lub qhov siab qhov sib txawv los yog txhaj tshuaj). Nyob rau hauv qhov kev piv txwv, analogy-qhia kwj ntawm cov dej - qhov no hluav taws xob tam sim no channel yog ib tug neeg xyuas pib, thiab lub zeb - ib tug ntaus ntawv muaj ib tug tej yam kuj. Cia li tig rau lub tshuab plug mus rau hauv lub qhov hluav taws xob thiab nias lub hwj huam khawm, ob qho tib si nyob rau hauv ib tug ntawm cov nyob ntawm tej, tam sim no yuav ntws. Hloov Siab Los Ntseeg rau hauv lwm daim ntawv ntawm lub zog (los ntawm kev ua hauj lwm), nws tseem nyob rau lwm yam hlau, mus rov qab mus rau ntawm daim phiaj. Uas yog vim li cas cov lus teb rau lo lus nug "vim li cas cov khoom siv ob-hlau" yog yooj yim: tsis muaj lwm txoj kev, raws li rau qhov them particle tam sim no yuav tsum tau yam tsawg ob lub ntsiab lus. Nco ntsoov hais tias lawv yuav tsum sib txawv. Uas yog, yog hais tias tus channel yog tsis muaj qhov sib txawv nyob rau hauv qhov siab ntawm qhov pib thiab thaum xaus cov ntsiab lus, cov xaav ntawm lub masses ntawm dej yuav tsis tshwm sim.

xyaum

Yog hais tias peb tham txog intrahouse AC qhov hluav taws xob, ces nyob ntawm kev twb kev txuas ntawm cov nyob ntawm tej yog ib theem - hais tias nws yog ntau heev muaj peev xwm, thiab lub thib ob - zero. Them nrog theem neeg xyuas pib, ntaus rau ntawm ib lub pins ntawm lub plug ntawm lub tshuab, ua hauj lwm thiab rov qab mus rau lub nruab nrab neeg xyuas pib ntawm lub duas paub hu rau. Tej zaum cov neeg xav yog vim li cas cov khoom siv ob hlau, raug nplua raws li ib qho piv txwv ib tug system nrog peb los yog plaub conductors. Tseeb, muaj. Nyob rau hauv cov ntaub ntawv no, cov theem conductors ntau. Piav qhia txog cov txheej txheem uas tshwm sim nyob rau hauv xws chains, ntau, thiab nyob rau hauv no tsab xov xwm tsis tau. Lub DC circuits kuj muab kev koom tes ob nyob ntawm tej: ib tug zoo (tshaj ions) thiab tsis zoo (electrons).

kis tau tus mob nruab nrab

Mus rau tam sim no "tuaj" rau peb tus kheej kiag li lawm, koj yuav tau saib xyuas ntawm "txoj kev" rau nws. Nws yog ib tug hlau hlau los yog ib tug insulated neeg xyuas pib. Ob peb nyob ntawm tej nyob rau hauv tag nrho cov kev rho tawm ua lub cable. Tej zaum cov ntsiab lus uas tsis meej pem. Piv txwv li, muaj tau lub npe hu ua "SIP-hlau", Txawm hais tias nyob rau hauv cov tsiaj ntawv tsab ntawv "P" cia li txhais tau tias ib tug neeg xyuas pib.

Qhov no yog ib tug ncaj khoom tshiab, li ntawd, ua kom pom tseeb rau ntawm nws nyob rau hauv kom meej. Lub thiaj li hu ua nws tus kheej-txhawb insulated cable nyob rau hauv peb lub teb chaws muaj nyob tsis ntev los no. Nyob rau hauv qhov tseeb, nws muaj ob peb lub nyob ntawm tej, cov rwb thaiv tsev ntawm uas yog soldered rau ib leeg, uas tas ib unitary qauv. SIP feature yog hais tias nws tsis yuav tsum tau ib tug hlau rau dai, raws li yog nws tus kheej-txhawb. Ntxiv mus, nws rwb thaiv tsev yuav tiv tau lub qhib huab cua rau ntawm tsawg kawg yog 40 xyoo nyob rau hauv temperate climates.