50 ma lampa 6X2p nazariy ma’lumotlar

Ishni bajarish tartibi:
1. Rasmdagi sxemani yig’ing (2 rasm).
2. Pereklyuchatelni “0-30” va “0-6,3v” holatlariga qo’ying .
3. Sxemani asbob shtativining “0-30v” va “0-6,3v” shtativlariga ulang.
4. Anod kuchlanishi 0 dan 10 v gacha o’zgatirib , nakal kuchlanishining qiymati 6,3 v anod tokining anod kuchlanishiga bog’liqligini tushunib oling .
5. Nakal kuchlanishni 0 dan 6,3 v gacha o’zgartirib anod kuchlanishining 10v dagi anod tokining nakal kuchlanishiga bog’liqligini tushunib oling .
6. Olgan natijalarni jadvalga yozib qo’yidagi grafiklarni chizing : I=f(U_a), U(H)=6,3 v, I=f(U_n), U_a=10 v

	Ua, V	Ia, mA	UH, V	Ia, mA
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Sinov savollari.
1. Termoelektron emissiya nima?
2. Lampaning Volt-Amper harakteristikasini tusuntirib bering.
3. Elektronlar katoddan anodga yoki anoddan katodga o’tadimi?