Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 2-chorak Fizika choraklik 8-sinf Fizika 2-chorak InfoMaster May 5, 2021 107 Ko'rishlar 0 SaqlashSaqlanganOlib tashlandi 0 0 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 2-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Elektr zanjiridagi lampochkadan 5 minutda 30 C zaryad o’tgani ma’lum. Zanjirdagi ampermetr lampochkadan qancha tok o’tayotganini ko’rsating? A) 6 A B) 0,5 A C) 0,1 A D) 0,4 A 2 / 25 Elektr qarshiligi qaysi harf bilan belgilanadi? A) U B) R C) L D) J 3 / 25 Elekt kuchlanishining ulchov birligi nima? A) Volt B) Sekund C) Kulon D) Amper 4 / 25 Kuchlanishni o’lchaydigan asbob nima diyeladi? A) elektroskop B) elektrometr C) voltmeter D) ampermetr 5 / 25 Rezistor so’zining manosi nima ? A) Qarshilik B) Tok kuchi C) Kuchlanish D) Zaryad 6 / 25 Rezistor uchlaridagi kuchlanish 9 V ga teng . Unda 0,5 A tok utishi uchun uning qarshiligi qancha bo’lishi kerak ? A) 44.4 Ω B) 20 Ω C) 18 Ω D) 44 Ω 7 / 25 Tok kuchining o'lchov birligi nima? A) Joul B) Volt C) Kulon D) Amper 8 / 25 Elektr qashiligi formulasi qaysi javobda keltirilgan? A) R=U/I B) I=qt C) Q=I^2Rt D) R=ρl/S 9 / 25 Elektr zanjirlaridagi Lampochkadan 0,2 A tok o’moqda lampochka speraliorqali 1 minutda nechakulon zaryad o’tadi ? A) 24 C B) 12 C C) 15 C D) 10 C 10 / 25 Uyali telefon iste'mol qiladigan tok kuchi qanchaga teng ? A) 0.4 A B) 0,2 A C) 0,5 A D) 0,1 A 11 / 25 Elektr zanjirda tokni rostlash uchun qo’llaniladigan turli qarshilikli elektr asbobi qanday nomlanadi ? A) elektrometr B) elektroskop C) rezistor D) potensiyometr 12 / 25 Elektr zanjirida 2 m va ko’ndalang kesimining yuzi 0,5 mm2 bo’lgan nixrom simning qarshiligini toping ? A) 4,4 Ω B) 440 Ω C) 2,2 Ω D) 220 Ω 13 / 25 Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta? A) 4 ta B) 6 ta C) 2 ta D) 0 ta 14 / 25 Zaryadi -5*10-8 C bo’lgan nuqtaviy zaryadning 3 sm msofada hosil qilgan elektr maydon kuchlanganligini toping? A) 5*10‾⁵ N/C B) 5*10⁵ N/C C) 5,1*10⁶ N/C D) 6*10⁴ N/C 15 / 25 Bitta elektron massasi nechaga teng ? A) 9,1*10^-31kg B) 3,36*10^-32kg C) 8,81*10^-19kg D) 1,6*10^-19kg 16 / 25 Ikkita o`tkazgichlar avval ketma- ket, so`ngra parallel ulandi. Bunda uning umumiy qarsiligi qanday o`zgaradi? A) o`zgarmaydi B) 2 marta kamayadi C) 4 marta kamaydi D) 2 marta ortadi 17 / 25 Akkumulator so’zining ma’nosi nima ? A) To’plovchi B) Zaryad oqimi C) Tok manbayi D) Zaryadlovchi 18 / 25 Elektrlanishning necha turi mavjud ? A) 2 B) 3 C) 4 D) 5 19 / 25 Atom so’zining ma’nosi nima ? A) Musbat zaryad B) Zaryad C) Bo’linmas D) Elektr zaryat 20 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Musbat zaryad B) Tok kuchi C) Zaryad D) Elektr toki 21 / 25 Elektr doimiysining son qiymati nechaga teng? A) 9,1*10^-31kg B) 8,85*10^-12C^2/N*m^2 C) -3*10^-19 C D) 3*10^-19 C 22 / 25 Elektr zaryadining o’lchov birligi nima ? A) volt B) kulon C) Amper D) Joul 23 / 25 Bir-biridan 10sm masofada turgan sharchalardanbirining zaryadi -2*10-8 C, ikkinchisiniki esa 3*10-8C ga teng. Ular qanday kuch bilan tortishadi? A) 5,4*10‾⁴ N B) 2*10‾⁸ N C) 5*10‾⁸ N D) 270 N 24 / 25 Jismlarning elektrlanganligini sezish ,kuzatish uchun qo’llaniladigan asbob qanday nomlanadi ? A) Elektroskop B) spedometr C) Areometr D) Barametr 25 / 25 Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan? A) hamma javoblar to'g'ri B) grek olimi Arximed C) yunon olimi Fales Miletskiy D) yunon olimi Aristotel 0% Testni qayta ishga tushiring Baholash mezoni 86%-100% 5 baho 71%-85% 4 baho 56%-70% 3 baho 55% va kamiga 2 baho Fikr-mulohaza yuboring Author: InfoMaster Foydali bo'lsa mamnunmiz