Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 3-chorak Fizika choraklik 8-sinf Fizika 3-chorak InfoMaster May 5, 2021 1300 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 5 0 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 3-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Elektrolizdan foydalanib ,buyumlarning sirtini qiyin oksidlanadigan metallar bilan qoplash….deyiladi ? A) Ion bog’lanish B) eletrlolez C) Galvonaplastina D) Galvonastegiya 2 / 25 Natriy (Na) atomida nechta electron bor ? A) 12 ta B) 10 ta C) 9 ta D) 11 ta 3 / 25 Elektr tokining quvvati formulasini ko’rsating ? A) N=A/t B) I=q/t C) R=I/U D) P=IU 4 / 25 Abu Rayhon Beruniy o’z asarlarida magnitni qanday nom bilan atagan ? A) Suniy magnitlar B) Doimiy magnitlar C) Ohangrabo-temirni tortuvchi D) Tabiy magnitlar 5 / 25 Elektr zanjirida ketma-ket ulangan iste`molchilar qarshiliklari 80, 120 va 200 Om dan iborat. Umumiy kuchlanish 220 V bo`lsa, uchinchi iste`molchidagi kuchlanish tushuvini toping A) 44 V B) 220 V C) 180 V D) 110 V 6 / 25 Bitta elektron massasi nechaga teng ? A) 3,36*10^-32kg B) 8,81*10^-19kg C) 1,6*10^-19kg D) 9,1*10^-31kg 7 / 25 Jismlarning elektrlanganligini sezish ,kuzatish uchun qo’llaniladigan asbob qanday nomlanadi ? A) Areometr B) Barametr C) Elektroskop D) spedometr 8 / 25 Atom so’zining ma’nosi nima ? A) Elektr zaryat B) Musbat zaryad C) Bo’linmas D) Zaryad 9 / 25 Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta? A) 0 ta B) 6 ta C) 2 ta D) 4 ta 10 / 25 Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan? A) yunon olimi Aristotel B) yunon olimi Fales Miletskiy C) hamma javoblar to'g'ri D) grek olimi Arximed 11 / 25 Elektr doimiysining son qiymati nechaga teng? A) 8,85*10^-12C^2/N*m^2 B) 9,1*10^-31kg C) 3*10^-19 C D) -3*10^-19 C 12 / 25 Qahrabo so’zining ma’nosi nima ? A) Elektrlanuvchi B) Manfiy C) Qattiq rezina D) Somon tortuvchi 13 / 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) 5,1*10⁶ N/C C) 6*10⁴ N/C D) 5*10⁵ N/C 14 / 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) 1 Ω B) 0.4 Ω C) 0.5 Ω D) 0.2 Ω 15 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) to'g'ri javob yo'q B) Musbat C) Manfiy D) Elektrlanmaydi 16 / 25 Elekt kuchlanishi formulasi berilgan javobni ko’rsating. A) F=kq/r^2 B) E=U/d C) I=q/t D) U=A|q 17 / 25 Elektr zanjirlaridagi Lampochkadan 0,2 A tok o’moqda lampochka speraliorqali 1 minutda nechakulon zaryad o’tadi ? A) 10 C B) 12 C C) 15 C D) 24 C 18 / 25 Elektr zanjirda tokni rostlash uchun qo’llaniladigan turli qarshilikli elektr asbobi qanday nomlanadi ? A) elektroskop B) rezistor C) elektrometr D) potensiyometr 19 / 25 Tok kuchini o’lchaydigan asbob qanday nomlanadi ? A) Voltmetr B) Elektrometr C) Elektroskop D) Ampermetr 20 / 25 Xonadonlardagi elect tarmog’ining kuchlanishi nechaga teng? A) 1,5 V B) 220 V C) 500 kV D) 5V 21 / 25 Rezistor uchlaridagi kuchlanish 9 V ga teng . Unda 0,5 A tok utishi uchun uning qarshiligi qancha bo’lishi kerak ? A) 44 Ω B) 44.4 Ω C) 18 Ω D) 20 Ω 22 / 25 Tok kuchining o'lchov birligi nima? A) Kulon B) Joul C) Amper D) Volt 23 / 25 Elekt kuchlanishining ulchov birligi nima? A) Amper B) Volt C) Sekund D) Kulon 24 / 25 Kuchlanishni o’lchaydigan asbob nima diyeladi? A) elektroskop B) ampermetr C) elektrometr D) voltmeter 25 / 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) 9 A B) 4 A C) 2 A D) 0,8 A 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
