Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 3-chorak Fizika choraklik 8-sinf Fizika 3-chorak InfoMaster May 5, 2021 576 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 3 0 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 3-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 1Vatt.soat necha Jaulga teng ? A) 360 J B) 5000 J C) 5600 J D) 3600 J 2 / 25 manbaning turli qutb (faza) laridan kelayotgan ichki elektr simi ochiq joyining bir-biriga tegib ketishi…….deyiladi? A) qisqa tutashuv B) Zaryadlar C) Tok kuchi D) Elektr toki 3 / 25 Abu Rayhon Beruniy o’z asarlarida magnitni qanday nom bilan atagan ? A) Suniy magnitlar B) Doimiy magnitlar C) Tabiy magnitlar D) Ohangrabo-temirni tortuvchi 4 / 25 Elektr toki bajargan ishining asosiy birligi nima? A) Vatt sekund B) amper C) Volt D) Paskal 5 / 25 Faradey doimiysining son qiymatini toping ? A) 7200 C/mol B) 7800 C/mol C) 96500 C/mol D) 8000C/mol 6 / 25 Bitta atom massasini topish formulasini ko’rsating ? A) m=µ/N B) to'g'ri javob yo'q C) N=mn∆z D) ν=m/µ 7 / 25 Elektr tokining bajargan ishini formulasini ko’rsating toping ? A) A=UIT B) R=UI C) J=q/t D) Q=I^2RT 8 / 25 1,5 soat davom etgan elektrolizda katodda 15 mg nikel yig’iladi.Elektroliz vaqtida eletrolitdan o’tagan tok kuchini toping ? A) 9mA B) 7 mA C) 25 mA D) 35,5 mA 9 / 25 Bug’ mashinasini kim kashf etgan ? A) Volta B) Amper C) Jems Uatt D) Kulon 10 / 25 Yorug’lik tezligini birinchi bo’lib kim aniqlagan A) O.Ryomer B) J.Uatt C) Rezirfort D) Nyuton 11 / 25 Natriy (Na) atomida nechta electron bor ? A) 12 ta B) 11 ta C) 9 ta D) 10 ta 12 / 25 Elektr zanjiridagi lampochkadan 5 minutda 30 C zaryad o’tgani ma’lum. Zanjirdagi ampermetr lampochkadan qancha tok o’tayotganini ko’rsating? A) 0,5 A B) 0,4 A C) 0,1 A D) 6 A 13 / 25 Elektr qashiligi formulasi qaysi javobda keltirilgan? A) Q=I^2Rt B) I=qt C) R=ρl/S D) R=U/I 14 / 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 15 / 25 Kuchlanishni o’lchaydigan asbob nima diyeladi? A) elektroskop B) voltmeter C) elektrometr D) ampermetr 16 / 25 Uyali telefon iste'mol qiladigan tok kuchi qanchaga teng ? A) 0,1 A B) 0,2 A C) 0.4 A D) 0,5 A 17 / 25 Elektr qarshiligi qaysi harf bilan belgilanadi? A) R B) U C) L D) J 18 / 25 Elektr zanjirlaridagi Lampochkadan 0,2 A tok o’moqda lampochka speraliorqali 1 minutda nechakulon zaryad o’tadi ? A) 24 C B) 15 C C) 12 C D) 10 C 19 / 25 Zaryadi -5*10-8 C bo’lgan nuqtaviy zaryadning 3 sm msofada hosil qilgan elektr maydon kuchlanganligini toping? A) 6*10⁴ N/C B) 5*10‾⁵ N/C C) 5*10⁵ N/C D) 5,1*10⁶ N/C 20 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Dinomometr B) Elektroskop C) Barometr D) Elektrometr 21 / 25 bu shartli belgi qanday nomlanadi? A) Kalit B) Qo’ng’iroq C) O’tkazgichlarning tutashtirmasdan kesishishi D) Tok manbayi 22 / 25 Elektr doimiysining son qiymati nechaga teng? A) 3*10^-19 C B) 8,85*10^-12C^2/N*m^2 C) 9,1*10^-31kg D) -3*10^-19 C 23 / 25 Elektr zaryadining o’lchov birligi nima ? A) Joul B) kulon C) volt D) Amper 24 / 25 Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan? A) yunon olimi Fales Miletskiy B) grek olimi Arximed C) yunon olimi Aristotel D) hamma javoblar to'g'ri 25 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Beruniy B) Rezerfort C) Kulon D) Demokret 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
