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Mustaqil ishi-3
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| bet | 1/2 | | Sana | 25.01.2024 | | Hajmi | 196,78 Kb. | | #145877 |
Bog'liq Fizika 3
Muhammad al-Xorazmiy nomidagi TATU Qarshi filiali Kampiyuter injeneringi fakulteti Kampiyuter injeneringi yo’nalishi KI-11-23(S) guruh talabasi Panjiyev Ulug’bekning Fizika fanidan tayyorlagan
Bajardi: Panjiyev Ulug’bek
Qabul qildi: Odilov.Y
REJA:
1. Vacuumda elektr to’ki
2. Thermoelectron emission.
3.O’ta o’tkazuvchanlik va uning kvantomexanik talqini.
4.Xulosa
1. Electron metallar ichida saqlanganligi uchun metal-vacuum chegarasida ularga sirt yakinida ta'sir qiluvchi metal ichiga qarab yunalgan kuchlar mavjuddir.
Chuqurlik қeқWо-Ео ga teng. Bu kattalik electron yakinlik (electronic affinity) deyiladi. Wo-metal tin tin turgan electronning energy satdzi-ba'zan uni vacuum satdzi qam deyiladi. I-ukuhlolwa kwe-electronlarning engi kichik energiasi-uku-ukazuvchanlik zonasining tubi. I-Fermi i-Fermi i-Fermi Energizing i-Fermi Fermi Energizing I-Fermi Energizing I-Fermi I-Fermi I-Fermi (EF) I-Fermi i-T (F) Demak, electron shu energetik oralykni, yani chiqish ishiga teng wa undan katta bulgan egaga ega bulganda u metallni taslab vacuumga chiqib ketadi. Bundai Odisani Biz Electron Emission Noise Deimiz. Shundai kilib, TqOK bulganda eng yukori energetik sodzada joilashgan elektronni cheksizlikkacha kuchirishda (vacuumga olib chiqishda) bajarilgan ish bilan ulchanadigan kattalikka biz chiqish ishi deimiz. Electron emission is used in the electron emission of the vacuum, and the electron emission of the vacuum.
Electron emission is a major emission of the metal of the electron emission Agar electron emission is the highest temperature in the energy of the agar electron industry, and the emission of the thermoelectron emission of the emission of the thermoelectron emission of the In the case of Bundan emissions, emission of photographs, emissions, and auto-emissions, emissions, etc., emission, etc., emission, etc., etc., emission, etc., emission, etc. Mavjud. Biz vacuum electric currents have been used to emission misolide curamis.
2 . termoelektron emissiya kuzatish uchun katod va anoddan iborat vakumli diod olishingiz kerak bo’ladi. Katody qushimcha tok mobainiga ulab qizdirganimizda unda elektronlar vacuumga chiqadi. Agar cathode bilan anode is the potential of the cathode.
Dioding cathodiga manbaning manfiy wa anodiga musbat kutbi ulanadi. Izinziswa kwe-cathoding kwe-manfiy zarralar (electronlar) kwe-e
Diodagi thermoelectron current heap cathode va anode orasiga kúyilgan potentiallar farqi-kuchlanishga boǵliq búladi. Cathoding is the temperature of the dioddan of the current of the cuchining of the kuchining qiymati kuchlanish in the field of 014, 025 yoki 036 nuqtalardan utadi. Kuchlanishning ma'lum qıymatidan keıin cathode va anod oraliǵidan ўtayotgan current kuchi ўzgarmay qoladi, yani biz dioddagi current túyinishga ega buldi deimiz. Túyinish toki (It) (2-rasm) asosan catodning temperatureasiga va uni qandai materialdan tayorlanganligiga boǵliq bulgan chiqish ishiga boǵliq búlady. Ukuhlolwa kwekuhlolwa. Izinziswa kwezi. Izinziswa kwe-anode ukuhlolwa kwe-anode ukuhlolwa kwe- Shu elektr maidon kuchlanganligi tomonidan kar bir elektronga manfiy zarrachaga Kuch ta'sir kiladi. Anod kuchlanishini oshishi natijasida cathode va anod orasida ҳosil bullgan elektronlar buluti-phase charge ta'sirini kamaitiradi wa katodda ҳosil bulgan elektronlarni ҳammasini anodga etib borishini ta'minlaydi.
Dioddan Ўtayotgan Tokning -IA ning Kuchlanish U ga boglanishi "3/2" qonuni orqali ifodalanadi, yani
IqCU3/2 (1)
I-C-electrodlarning i-C-electrode-electro
3. Ukuhlolwa kwekuhlolwa:
(2)
bu erda A barcha metallar uchun bir hil bulgan doimiy, k-Boltzman doimiysi. F-har bir metallarga hos bulgan thermoelectron chiqish ishi. (2) Richardson-Dashman formulas. (1) Ifodani faqat metallar uchun emas, beams yarimutkazgichlar uchun qam ishlatish mumkin. U ҳolda chiqish ishi f ni manosi uzgarib ketadi. Metallar uchun chiqish ishi asosan f 25 eV atrofida búlady.
4. Electron emission and thermoelectron emission, photoelectron emission, autoelectron emission and electron emission of the electron. Ukuhlolwa kwe-thermoelectron emission. Thermoelectron emission of asoxide kúrilgan electron lampalar ikki electrodes (diode), uch electrodes (triode) va kup electrodes lampalardir.
Ikki electrodes lampalarni elektr tўǵrilagichlar yordamida uzgaruvchan tokni uzgarmas tokka ailantirish hususiyati, uch electrodli va kup electrodli lampalar yordamida qar hil kupaytirgichlar sifatida ishlatilyshi qaqida kup misollar keltirish mumkin.
Ikki electrodli, uch electrodli va kup electrodes lampalarda qar bir electrodni vazifasi va lampalarning ishlash principlari, ularning characteristics qaqida ma'lumotlar berish mumkin.
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