Cov tshuab hluav taws xob yog cov cuab yeej siv hloov chaw sib nqus los tsim hluav taws xob tam sim no los ntawm cov xov hlau. Thaum tag nrho cov qauv ntsuas tuaj yeem nyuaj thiab kim los tsim, koj tuaj yeem tsim lub tshuab hluav taws xob yooj yim yooj yim. Txhua yam koj yuav tsum tau ua yog tsim lub thav duab yooj yim los tuav cov hlau thiab cov hlau nplaum, cua tshuab xaim, txuas nws mus rau cov khoom siv hluav taws xob, thiab lo cov hlau nplaum mus rau hauv lub kiv kiv. Qhov no txawm ua haujlwm tau zoo los qhia cov khoom siv hluav taws xob, lossis tso tawm ua qhov haujlwm tshawb fawb.
Cov kauj ruam
Ntu 1 ntawm 3: Tsim Tus Qauv
Kauj Ruam 1. Txiav daim cardboard
Cardboard yuav ua tus ncej thiab txhawb nqa koj lub tshuab hluav taws xob yooj yim. Siv tus pas ntsuas los ntsuas daim kab xev uas yog 8 cm (3.1 in) los ntawm 30.4 centimeters (12.0 in). Txiav cov hlua no nrog txiab lossis rab riam siv. Ib daim ntawv no yuav tau muab tais ua lub thav duab.
Kauj Ruam 2. Kos daim duab los ntawv
Siv tus pas ntsuas los ntsuas qhov ntev ntawm daim duab los qhia. Ua koj tus cim thawj ntawm 8 centimeters (3.1 hauv). Koj lub cim thib ob yuav tsum yog ntawm 11.5 centimeters (4.5 hauv), thiab koj lub cim thib peb yuav tsum yog ntawm 19.5 centimeters (7.7 hauv). Lub cim kawg yuav yog ntawm 22.7 centimeters (8.9 hauv).
Qhov no tsim ntu ntawm 8 centimeters (3.1 in), 3.5 centimeters (1.4 in), 8 centimeters (3.1 in), 3.2 centimeters (1.3 in), thiab 7.7 centimeters (3.0 in). Tsis txhob txiav cov ntu no
Kauj Ruam 3. Khaws daim duab los qhia
Khawb daim ntawv los ntawm txhua tus cim. Qhov no yuav ua rau koj daim tiaj tiaj ntawm cov duab los qhia rau hauv daim duab plaub fab. Cov thav duab no yuav nyob nrog cov khoom siv ntawm koj lub tshuab hluav taws xob.
Kauj Ruam 4. Xaub cov hlau hlau hla tus ncej txhawb nqa
Thawb tus ntsia hlau hla nruab nrab ntawm daim duab los qhia ntawv. Xyuas kom koj mus dhau tag nrho peb daim duab los qhia uas tau muab tais rau hauv plawv. Qhov no yuav tsim lub qhov rau koj tus ncej. Tam sim no koj tuaj yeem ntxig ib rab hlau, lossis siv tus ntsia hlau ua koj tus ncej.
Cov ncej hlau tsis tas yuav muaj dab tsi tshwj xeeb. Ib qho ntawm cov hlau uas yuav haum los ntawm lub qhov thiab tuaj tawm ntawm lwm sab ntawm tus ncej yog qhov siv tau. Cov ntsia hlau koj siv los ua lub qhov yuav ua haujlwm zoo
Ntu 2 ntawm 3: Tsim Lub Circuit
Kauj Ruam 1. Cua xaim tooj liab
Ua ob peb ncig ib ncig ntawm lub thawv ntawv ntawv uas muaj cov xim pleev xim tooj liab hlau (#30 hlau nplaum hlau). Cua 200 ko taw (61 m) ntawm cov hlau nruj li koj tuaj yeem ua tau. Tawm ntawm 16 txog 18 ntiv tes (40.6 txog 45.7 cm) xaim xoob ntawm txhua qhov kawg txhawm rau txuas rau koj lub ntsuas, lub teeb, lossis lwm yam khoom siv hluav taws xob. Ntau "tig" lossis cua koj ua nyob ib puag ncig ntawm daim duab los qhia, lub zog ntau dua uas koj lub tshuab hluav taws xob yuav tsum tsim.
Kauj Ruam 2. Tshem qhov kawg ntawm xaim
Siv rab riam lossis rab hlau xaim kom tshem cov rwb thaiv tsev los ntawm txhua qhov kawg ntawm xaim. Tshem tawm li 2.54 centimeters (1.00 in) ntawm rwb thaiv tsev los ntawm txhua sab. Qhov no yuav tso cai rau koj txuas cov xov hlau mus rau cov khoom siv hluav taws xob.
Kauj Ruam 3. Txuas cov xov hlau mus rau lub tshuab hluav taws xob
Txuas ob lub xov hlau uas koj tau xoob ntawm qhov kawg ntawm cov cua mus rau lub teeb liab liab, #49 lub teeb me me, lossis lub teeb 1.5V nplej-ntawm-nplej. Lossis, txuas qhov ntsuas coj los ntawm AC voltmeter lossis multimeter rau lawv. Nco ntsoov tias koj tab tom tsim hluav taws xob tsawg heev, thiab cov cuab yeej loj dua (piv txwv li lub teeb pom kev tsis tu ncua) yuav tsis raug siv los ntawm lub tshuab hluav taws xob no.
Ntu 3 ntawm 3: Teeb Magnets
Kauj Ruam 1. Kaw cov hlau nplaum rau ntawm tus ncej
Siv lub zog muaj zog kub yaj cov kua nplaum lossis epoxy los lo plaub lub hlau nplaum hlau nplaum rau ntawm tus ncej. Koj xav kom cov hlau nplaum nyob ruaj khov nrog kev hwm rau tus ncej. Cov hlau nplaum yuav tsum tau lo rau ntawm tus ncej tom qab tus ncej tau ntxig rau hauv tus ncej. Tso cov kua nplaum kom qhuav li ob peb feeb (cov lus qhia ntawm lub ntim tuaj yeem qhia koj lub sijhawm kom qhuav rau koj hom kua nplaum).
Rau qhov ua tau zoo tshaj plaws, siv 1x2x5 cm cov hlau nplaum ceramic (cov no tuaj yeem pom hauv online rau tus nqi tsim nyog). Muab lawv xwv kom ob lub hlau nplaum tig mus rau lub kauj nrog lawv sab qaum teb, thiab ob sab ntsib lub kauj nrog lawv sab qab teb
Kauj Ruam 2. Tig tus ncej nrog koj cov ntiv tes
Qhov no tso cai rau koj pom tias qhov kawg ntawm cov hlau nplaum tsoo sab hauv ntawm tus ncej. Cov hlau nplaum yuav tsum tig dawb, tab sis kom ze li sai tau rau phab ntsa ntawm tus ncej. Ib zaug ntxiv, muaj cov hlau nplaum kawg li kaw cov tooj liab hlau uas muaj peev xwm ua tau yuav ua rau qhov "zoo siab" ua ntawm cov chaw sib nqus uas cov hlau nplaum tsim.
Kauj Ruam 3. Tig tus ncej kom nrawm li sai tau
Tej zaum koj yuav xav kom hlua hlua nyob ib puag ncig qhov kawg ntawm tus ncej, tom qab ntawd rub nws kom nrawm los tig cov hlau nplaum. Koj tuaj yeem tsuas yog tig nws nrog koj cov ntiv tes. Raws li tus ncej tig, koj yuav tsum tau txais qhov hluav taws xob me me (txaus kom pom lub teeb pom kev 1.5 volt).
