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Elektr zanjirlari bo'yicha test

Authored by Sherzod Dusqobilov

Physics

8th Grade

Used 5+ times

Elektr zanjirlari bo'yicha test
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Qaysi elektr zanjirida saqlagich to'g'ri o'rnatilgan ?

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2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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Rasmda parallel ulangan ikki qarshilik ko'rsatilgan , ularning umumiy qarshiligi quyidagicha bo'ladi.

2 Ω va 4 Ω yig'indisiga teng

4 Ω dan katta

2 Ω dan 4 Ω gacha

2 Ω dan kam

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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Zanjirda resistor va reostat ketma ket ulangan reostat qarshiligi orttirilsa ampermetr va voltmeter ko'rsatishlari qanday o'zgaradi ? Ampermetr Voltmetr

ortadi kamaydi

ortadi o'zgarmaydi

kamayadi kamayadi

o'zgarmaydi ortadi

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

parallel ulangan qarshiliklarda qaysi kattaliklar teng bo'ladi ?

Tok kuchlari

potensiallar farqi

potensial tushuvi

zaryad miqdori

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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Elektr zanjirdagi voltmeter necha voltni ko'rsatadi ?

9 V

3 V

18 V

36 V

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Elektr choynak 13 A tok kuchida normal holatda ishlaydi. Agar unga 3 A lik saqlagich qo'yilsa choynak tokga ulansa nima sodir bo'ladi ?

saqlagich eriydi , choynak buziladi

saqlagich erimaydi , choynak normal ishlaydi

saqlagich eriydi , choynak buzilmaydi

saqlagich erimaydi , choynak ishlamaydi

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Oshxonaga elektr pechkasi o'rnatildi . Pech saqlagich bilan himoyalangan va normal rejimda ishlaydi, lekin egasi pechni elektr tarmog'iga ulaydigan simlar juda qizib ketishini sezib qoldi . simlarning haroratini pasaytirish uchun nima qilish kerak ?

o'chirish kalitini ulash kerak

simlarga qalinroq izolyatsiya o'rash kerak

simlarni qalinroq sigma almashtirish kerak

simlarni ingichka simlarga almashtirish kerak

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