
Elektr zanjirlari bo'yicha test
Authored by Sherzod Dusqobilov
Physics
8th Grade
Used 5+ times

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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 ?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
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
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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