Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 2-chorak Fizika choraklik 8-sinf Fizika 2-chorak InfoMaster May 5, 2021 1047 Ko'rishlar 0 SaqlashSaqlanganOlib tashlandi 0 0 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 2-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Rezistor so’zining manosi nima ? A) Zaryad B) Kuchlanish C) Qarshilik D) Tok kuchi 2 / 25 Elektr zanjirlaridagi Lampochkadan 0,2 A tok o’moqda lampochka speraliorqali 1 minutda nechakulon zaryad o’tadi ? A) 15 C B) 12 C C) 10 C D) 24 C 3 / 25 Elektr zanjirda tokni rostlash uchun qo’llaniladigan turli qarshilikli elektr asbobi qanday nomlanadi ? A) elektroskop B) elektrometr C) potensiyometr D) rezistor 4 / 25 Xonadonlardagi elect tarmog’ining kuchlanishi nechaga teng? A) 500 kV B) 220 V C) 5V D) 1,5 V 5 / 25 Uyali telefon iste'mol qiladigan tok kuchi qanchaga teng ? A) 0,1 A B) 0.4 A C) 0,2 A D) 0,5 A 6 / 25 Elekt kuchlanishi formulasi berilgan javobni ko’rsating. A) I=q/t B) E=U/d C) F=kq/r^2 D) U=A|q 7 / 25 Temir moddasining (200C da) solishtirma qashiligi nechaga teng? A) 0.5 B) 0,4 C) 0,098 D) 0.017 8 / 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) 18 Ω C) 20 Ω D) 44.4 Ω 9 / 25 Elektr qarshiligi qaysi harf bilan belgilanadi? A) J B) U C) L D) R 10 / 25 Elekt kuchlanishining ulchov birligi nima? A) Kulon B) Amper C) Volt D) Sekund 11 / 25 Elektrlanishning necha turi mavjud ? A) 4 B) 2 C) 3 D) 5 12 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Elektrometr B) Dinomometr C) Barometr D) Elektroskop 13 / 25 Jismlarning elektrlanganligini sezish ,kuzatish uchun qo’llaniladigan asbob qanday nomlanadi ? A) spedometr B) Barametr C) Areometr D) Elektroskop 14 / 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) 5*10‾⁸ N B) 270 N C) 5,4*10‾⁴ N D) 2*10‾⁸ N 15 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Beruniy B) Demokret C) Rezerfort D) Kulon 16 / 25 Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan? A) grek olimi Arximed B) yunon olimi Fales Miletskiy C) hamma javoblar to'g'ri D) yunon olimi Aristotel 17 / 25 Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta? A) 4 ta B) 6 ta C) 2 ta D) 0 ta 18 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) Areometr B) Ampermetr C) kondensator D) Voltmetr 19 / 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) 0.2 Ω C) 0.5 Ω D) 0.4 Ω 20 / 25 Akkumulator so’zining ma’nosi nima ? A) To’plovchi B) Tok manbayi C) Zaryad oqimi D) Zaryadlovchi 21 / 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 22 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Musbat zaryad B) Tok kuchi C) Elektr toki D) Zaryad 23 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) Musbat B) Manfiy C) Elektrlanmaydi D) to'g'ri javob yo'q 24 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Elementar zaryad B) Nuqtaviy zaryad C) Musbat zaryad D) Manfiy zaryad 25 / 25 Qahrabo so’zining ma’nosi nima ? A) Somon tortuvchi B) Qattiq rezina C) Manfiy D) Elektrlanuvchi 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