Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 3-chorak Fizika choraklik 8-sinf Fizika 3-chorak InfoMaster May 5, 2021 1401 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 5 0 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 3-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 220 V kuchlanishda 5 A tok olib ishlaydigan dazmolning quvvatini toping ? A) 110W B) 100 W C) 1,1 kW D) 220 W 2 / 25 Elektr tokining bajargan ishini formulasini ko’rsating toping ? A) R=UI B) J=q/t C) A=UIT D) Q=I^2RT 3 / 25 Elektrolidan tok o’tayotganda elektrodlarda modda ajralib chiqish hodisasi……deb ataladi A) Suvli eritma B) Eletroliz C) Ion bog’lanish D) Turli eritma 4 / 25 Natriy (Na) atomida nechta electron bor ? A) 12 ta B) 10 ta C) 11 ta D) 9 ta 5 / 25 Ionlar orasida Kulon kuchi tufayli vijudga keladigan kimyoviy bog’lanish……deb ataladi? A) Ionli bog’lanish B) Elektrolitlar C) Qutbli bog’lanish D) Kovalent bog’lanish 6 / 25 220 V kuchlanishda 0,25 A tok olib yonayotgan elektr lampochkadagi tokning quvvatini toping ? A) 5,5 W B) 55 W C) 500 W D) 550 W 7 / 25 Elektrolizdan foydalanib ,buyumlarning sirtini qiyin oksidlanadigan metallar bilan qoplash….deyiladi ? A) Ion bog’lanish B) eletrlolez C) Galvonastegiya D) Galvonaplastina 8 / 25 Elekt kuchlanishining ulchov birligi nima? A) Kulon B) Sekund C) Amper D) Volt 9 / 25 Tok kuchining o'lchov birligi nima? A) Kulon B) Joul C) Volt D) Amper 10 / 25 Elekt kuchlanishi formulasi berilgan javobni ko’rsating. A) E=U/d B) F=kq/r^2 C) U=A|q D) I=q/t 11 / 25 Uyali telefon iste'mol qiladigan tok kuchi qanchaga teng ? A) 0.4 A B) 0,2 A C) 0,1 A D) 0,5 A 12 / 25 Kuchlanishni o’lchaydigan asbob nima diyeladi? A) elektrometr B) ampermetr C) elektroskop D) voltmeter 13 / 25 Elektr zanjirda tokni rostlash uchun qo’llaniladigan turli qarshilikli elektr asbobi qanday nomlanadi ? A) elektroskop B) potensiyometr C) rezistor D) elektrometr 14 / 25 Rezistor so’zining manosi nima ? A) Qarshilik B) Zaryad C) Kuchlanish D) Tok kuchi 15 / 25 Elektr qashiligi formulasi qaysi javobda keltirilgan? A) R=U/I B) R=ρl/S C) I=qt D) Q=I^2Rt 16 / 25 Elektr zanjirida 2 m va ko’ndalang kesimining yuzi 0,5 mm2 bo’lgan nixrom simning qarshiligini toping ? A) 4,4 Ω B) 2,2 Ω C) 220 Ω D) 440 Ω 17 / 25 Tok kuchini o’lchaydigan asbob qanday nomlanadi ? A) Ampermetr B) Elektroskop C) Voltmetr D) Elektrometr 18 / 25 Elektr zanjiridagi lampochkada parallel ulangan voltmeter 1,5 V ni ko’rsatmoqda. Lampochkadan 10 c zaryad o’tganda qancha ish bajariladi A) 20 J B) 15 J C) 155 J D) 220 J 19 / 25 Elektr qarshiligi qaysi harf bilan belgilanadi? A) R B) L C) J D) U 20 / 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 21 / 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) 2*10‾⁸ N B) 5*10‾⁸ N C) 270 N D) 5,4*10‾⁴ N 22 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Musbat zaryad B) Zaryad C) Tok kuchi D) Elektr toki 23 / 25 Qahrabo so’zining ma’nosi nima ? A) Somon tortuvchi B) Qattiq rezina C) Manfiy D) Elektrlanuvchi 24 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) Elektrlanmaydi B) Musbat C) Manfiy D) to'g'ri javob yo'q 25 / 25 Akkumulator so’zining ma’nosi nima ? A) To’plovchi B) Zaryadlovchi C) Zaryad oqimi D) Tok manbayi 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
