Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 3-chorak Fizika choraklik 8-sinf Fizika 3-chorak InfoMaster May 5, 2021 624 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 3 1 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 3-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Elektr doimiysining son qiymati nechaga teng? A) -3*10^-19 C B) 3*10^-19 C C) 8,85*10^-12C^2/N*m^2 D) 9,1*10^-31kg 2 / 25 Bitta elektron zaryadi nechaga teng ? A) 9,1*10^-31C B) 1,6*10^-19C C) 2,01*10^-19C D) 8,81*10^-19 3 / 25 bu shartli belgi qanday nomlanadi? A) Tok manbayi B) Qo’ng’iroq C) Kalit D) O’tkazgichlarning tutashtirmasdan kesishishi 4 / 25 Zaryadi -5*10-8 C bo’lgan nuqtaviy zaryadning 3 sm msofada hosil qilgan elektr maydon kuchlanganligini toping? A) 5*10⁵ N/C B) 6*10⁴ N/C C) 5*10‾⁵ N/C D) 5,1*10⁶ N/C 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) 110 V D) 180 V 6 / 25 Jismlarning elektrlanganligini sezish ,kuzatish uchun qo’llaniladigan asbob qanday nomlanadi ? A) Areometr B) Barametr C) spedometr D) Elektroskop 7 / 25 Qahrabo so’zining ma’nosi nima ? A) Somon tortuvchi B) Qattiq rezina C) Manfiy D) Elektrlanuvchi 8 / 25 Elektr sig’imining o’lchov birligi nima ? A) amper B) Kulon C) Sekund D) Farad 9 / 25 Atom so’zining ma’nosi nima ? A) Bo’linmas B) Zaryad C) Musbat zaryad D) Elektr zaryat 10 / 25 Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta? A) 6 ta B) 2 ta C) 0 ta D) 4 ta 11 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Dinomometr B) Elektroskop C) Barometr D) Elektrometr 12 / 25 manbaning turli qutb (faza) laridan kelayotgan ichki elektr simi ochiq joyining bir-biriga tegib ketishi…….deyiladi? A) Zaryadlar B) Tok kuchi C) Elektr toki D) qisqa tutashuv 13 / 25 Yorug’lik tezligini birinchi bo’lib kim aniqlagan A) J.Uatt B) O.Ryomer C) Nyuton D) Rezirfort 14 / 25 1,5 soat davom etgan elektrolizda katodda 15 mg nikel yig’iladi.Elektroliz vaqtida eletrolitdan o’tagan tok kuchini toping ? A) 35,5 mA B) 7 mA C) 25 mA D) 9mA 15 / 25 Elektr tokining bajargan ishini formulasini ko’rsating toping ? A) R=UI B) Q=I^2RT C) A=UIT D) J=q/t 16 / 25 Ionlar orasida Kulon kuchi tufayli vijudga keladigan kimyoviy bog’lanish……deb ataladi? A) Ionli bog’lanish B) Kovalent bog’lanish C) Qutbli bog’lanish D) Elektrolitlar 17 / 25 Faradey doimiysining son qiymatini toping ? A) 7800 C/mol B) 96500 C/mol C) 7200 C/mol D) 8000C/mol 18 / 25 Bug’ mashinasini kim kashf etgan ? A) Amper B) Jems Uatt C) Kulon D) Volta 19 / 25 Bitta atom massasini topish formulasini ko’rsating ? A) N=mn∆z B) to'g'ri javob yo'q C) m=µ/N D) ν=m/µ 20 / 25 Abu Rayhon Beruniy o’z asarlarida magnitni qanday nom bilan atagan ? A) Doimiy magnitlar B) Tabiy magnitlar C) Suniy magnitlar D) Ohangrabo-temirni tortuvchi 21 / 25 Natriy (Na) atomida nechta electron bor ? A) 11 ta B) 9 ta C) 12 ta D) 10 ta 22 / 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) 0,1 A C) 0,5 A D) 0,4 A 23 / 25 Elektr qashiligi formulasi qaysi javobda keltirilgan? A) R=U/I B) I=qt C) R=ρl/S D) Q=I^2Rt 24 / 25 Elektr zanjiridagi lampochkada parallel ulangan voltmeter 1,5 V ni ko’rsatmoqda. Lampochkadan 10 c zaryad o’tganda qancha ish bajariladi A) 15 J B) 155 J C) 220 J D) 20 J 25 / 25 Elektr zanjirlaridagi Lampochkadan 0,2 A tok o’moqda lampochka speraliorqali 1 minutda nechakulon zaryad o’tadi ? A) 24 C B) 10 C C) 12 C D) 15 C 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
