Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 3-chorak Fizika choraklik 8-sinf Fizika 3-chorak InfoMaster May 5, 2021 432 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 3 0 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 3-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Bitta atom massasini topish formulasini ko’rsating ? A) to'g'ri javob yo'q B) ν=m/µ C) N=mn∆z D) m=µ/N 2 / 25 Bug’ mashinasini kim kashf etgan ? A) Kulon B) Amper C) Volta D) Jems Uatt 3 / 25 Natriy (Na) atomida nechta electron bor ? A) 10 ta B) 9 ta C) 11 ta D) 12 ta 4 / 25 220 V kuchlanishda 5 A tok olib ishlaydigan dazmolning quvvatini toping ? A) 100 W B) 1,1 kW C) 220 W D) 110W 5 / 25 Faradey doimiysining son qiymatini toping ? A) 7800 C/mol B) 8000C/mol C) 7200 C/mol D) 96500 C/mol 6 / 25 Temir moddasining (200C da) solishtirma qashiligi nechaga teng? A) 0.5 B) 0,098 C) 0.017 D) 0,4 7 / 25 Elektr zanjirlaridagi Lampochkadan 0,2 A tok o’moqda lampochka speraliorqali 1 minutda nechakulon zaryad o’tadi ? A) 15 C B) 10 C C) 12 C D) 24 C 8 / 25 Elektr zanjirida 2 m va ko’ndalang kesimining yuzi 0,5 mm2 bo’lgan nixrom simning qarshiligini toping ? A) 2,2 Ω B) 4,4 Ω C) 440 Ω D) 220 Ω 9 / 25 Elektr qashiligi formulasi qaysi javobda keltirilgan? A) R=ρl/S B) R=U/I C) I=qt D) Q=I^2Rt 10 / 25 Tok kuchini o’lchaydigan asbob qanday nomlanadi ? A) Elektroskop B) Ampermetr C) Elektrometr D) Voltmetr 11 / 25 Elektr qarshiligi qaysi harf bilan belgilanadi? A) J B) R C) U D) L 12 / 25 Elektr zanjiridagi lampochkadan 5 minutda 30 C zaryad o’tgani ma’lum. Zanjirdagi ampermetr lampochkadan qancha tok o’tayotganini ko’rsating? A) 0,1 A B) 0,4 A C) 6 A D) 0,5 A 13 / 25 Elektr doimiysining son qiymati nechaga teng? A) -3*10^-19 C B) 9,1*10^-31kg C) 3*10^-19 C D) 8,85*10^-12C^2/N*m^2 14 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Elektroskop B) Dinomometr C) Elektrometr D) Barometr 15 / 25 Elektr sig’imining o’lchov birligi nima ? A) Sekund B) amper C) Kulon D) Farad 16 / 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) 270 N B) 5*10‾⁸ N C) 5,4*10‾⁴ N D) 2*10‾⁸ N 17 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Nuqtaviy zaryad B) Manfiy zaryad C) Musbat zaryad D) Elementar zaryad 18 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) Voltmetr B) Ampermetr C) Areometr D) kondensator 19 / 25 Bitta elektron zaryadi nechaga teng ? A) 9,1*10^-31C B) 2,01*10^-19C C) 8,81*10^-19 D) 1,6*10^-19C 20 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) Musbat B) Manfiy C) Elektrlanmaydi D) to'g'ri javob yo'q 21 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Musbat zaryad B) Tok kuchi C) Elektr toki D) Zaryad 22 / 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 23 / 25 Elektr zaryadining o’lchov birligi nima ? A) volt B) Amper C) Joul D) kulon 24 / 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) 180 V B) 44 V C) 220 V D) 110 V 25 / 25 Qahrabo so’zining ma’nosi nima ? A) Somon tortuvchi B) Elektrlanuvchi C) Qattiq rezina D) Manfiy 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
