Turli muhitlarda elektr toki

Question 1

Vakuumli diod toki to‘yinishga erishmagan. Agar diodning anod kuchlanishi 4 marta kamaysa, dioddagi tokning quvvati necha marta kamayadi?

Accepted Answer

32

Answer

24

Answer

8

Answer

16

Question 2

Eritmada mis ionlari ($Cu^{2+}$) bor. Katodda 100 g mis ajralib chiqishi uchun katod orqali nechta elementar zaryad ($e$) o‘tishi kerak?

Accepted Answer

$1{,}9\cdot 10^{24}$

Answer

$1{,}9\cdot 10^{21}$

Answer

$1{,}9\cdot 10^{19}$

Answer

$1{,}9\cdot 10^{20}$

Question 3

4 valentli kremniyga birinchi holatda 3 valentli indiy, ikkinchi holatda 5 valentli mishyak qo‘shildi. Bu ikki holatda aralashma qanday o‘tkazuvchanlikka ega bo‘ladi?

Accepted Answer

birinchi holatda – kovakli, ikkinchi holatda – elektronli

Answer

birinchi holatda – elektronli, ikkinchi holatda – kovakli

Answer

har ikkala holatda – elektronli

Answer

har ikkala holatda – kovakli

Turli muhitlarda elektr toki

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