8-sinf Fizika 2-chorak May 5, 2021May 5, 2021 da chop etilgan InfoMaster tomonidan 8-sinf Fizika 2-chorak ga fikr bildirilmagan. 9 8-sinf Fizika 2-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Atom so’zining ma’nosi nima ? A) Elektr zaryat B) Bo’linmas C) Zaryad D) Musbat zaryad 2 / 25 Qarshiligi 10 Ω bo`lgan mis o`tkazgichni 5 ta teng bo`lakka bo`lib, bo`laklar o`zaro parallel ulandi. Umumiy qarshilikni toping. A) 0.5 Ω B) 0.2 Ω C) 0.4 Ω D) 1 Ω 3 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) kondensator B) Voltmetr C) Ampermetr D) Areometr 4 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) Musbat B) to'g'ri javob yo'q C) Elektrlanmaydi D) Manfiy 5 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Demokret B) Kulon C) Beruniy D) Rezerfort 6 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Manfiy zaryad B) Musbat zaryad C) Elementar zaryad D) Nuqtaviy zaryad 7 / 25 Akkumulator so’zining ma’nosi nima ? A) Tok manbayi B) Zaryadlovchi C) Zaryad oqimi D) To’plovchi 8 / 25 Jismlarning elektrlanganligini sezish ,kuzatish uchun qo’llaniladigan asbob qanday nomlanadi ? A) spedometr B) Elektroskop C) Areometr D) Barametr 9 / 25 Bitta elektron zaryadi nechaga teng ? A) 1,6*10^-19C B) 8,81*10^-19 C) 9,1*10^-31C D) 2,01*10^-19C 10 / 25 Elektr doimiysining son qiymati nechaga teng? A) 8,85*10^-12C^2/N*m^2 B) -3*10^-19 C C) 3*10^-19 C D) 9,1*10^-31kg 11 / 25 Elektrlanishning necha turi mavjud ? A) 2 B) 5 C) 4 D) 3 12 / 25 bu shartli belgi qanday nomlanadi? A) Qo’ng’iroq B) Tok manbayi C) Kalit D) O’tkazgichlarning tutashtirmasdan kesishishi 13 / 25 Rezistor so’zining manosi nima ? A) Qarshilik B) Zaryad C) Kuchlanish D) Tok kuchi 14 / 25 Tok kuchining o'lchov birligi nima? A) Volt B) Amper C) Kulon D) Joul 15 / 25 Uzunligi 1 m, ko’ndalang kesimining yuzi 0,4 mm2 bo’lgan nikelin simning uchlaridagi kuchlanish 2 V gat eng. Shu elektr zanjir orqali o’tayotgan tok kuchini aniqlang? A) 0,8 A B) 9 A C) 2 A D) 4 A 16 / 25 Elekt kuchlanishining ulchov birligi nima? A) Amper B) Sekund C) Volt D) Kulon 17 / 25 Elektr zanjiridagi lampochkada parallel ulangan voltmeter 1,5 V ni ko’rsatmoqda. Lampochkadan 10 c zaryad o’tganda qancha ish bajariladi A) 220 J B) 155 J C) 15 J D) 20 J 18 / 25 Kuchlanishni o’lchaydigan asbob nima diyeladi? A) ampermetr B) elektrometr C) elektroskop D) voltmeter 19 / 25 Elektr zanjirida 2 m va ko’ndalang kesimining yuzi 0,5 mm2 bo’lgan nixrom simning qarshiligini toping ? A) 440 Ω B) 2,2 Ω C) 220 Ω D) 4,4 Ω 20 / 25 Uyali telefon iste'mol qiladigan tok kuchi qanchaga teng ? A) 0,1 A B) 0,2 A C) 0,5 A D) 0.4 A 21 / 25 Elektr qashiligi formulasi qaysi javobda keltirilgan? A) R=U/I B) Q=I^2Rt C) I=qt D) R=ρl/S 22 / 25 Xonadonlardagi elect tarmog’ining kuchlanishi nechaga teng? A) 1,5 V B) 5V C) 220 V D) 500 kV 23 / 25 Elektr janjiridagi lampochkadan ma’lum vaqt davomida 25 c zaryad o’tib , 75 J ish bajarildi,lampochka qanday elektr kuchlanish ostida yongan? A) 25 V B) 12 V C) 15 V D) 3 v 24 / 25 Elektr zanjirda tokni rostlash uchun qo’llaniladigan turli qarshilikli elektr asbobi qanday nomlanadi ? A) elektroskop B) potensiyometr C) rezistor D) elektrometr 25 / 25 Rezistor uchlaridagi kuchlanish 9 V ga teng . Unda 0,5 A tok utishi uchun uning qarshiligi qancha bo’lishi kerak ? A) 20 Ω B) 44.4 Ω C) 44 Ω D) 18 Ω 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 Fizika choraklik