Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 3-chorak Fizika choraklik 8-sinf Fizika 3-chorak InfoMaster May 5, 2021 538 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 3 0 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 3-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Tok kuchi formulasi keltirilgan javobni aniqlang? A) U=A/q B) I=q/t C) Q=ItU D) R=U/I 2 / 25 Elektr zanjiridagi lampochkadan 5 minutda 30 C zaryad o’tgani ma’lum. Zanjirdagi ampermetr lampochkadan qancha tok o’tayotganini ko’rsating? A) 0,4 A B) 6 A C) 0,1 A D) 0,5 A 3 / 25 Tok kuchining o'lchov birligi nima? A) Amper B) Kulon C) Joul D) Volt 4 / 25 Kuchlanishni o’lchaydigan asbob nima diyeladi? A) elektroskop B) ampermetr C) elektrometr D) voltmeter 5 / 25 Akkumulator so’zining ma’nosi nima ? A) Zaryad oqimi B) Tok manbayi C) Zaryadlovchi D) To’plovchi 6 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Dinomometr B) Barometr C) Elektroskop D) Elektrometr 7 / 25 Ikkita o`tkazgichlar avval ketma- ket, so`ngra parallel ulandi. Bunda uning umumiy qarsiligi qanday o`zgaradi? A) 2 marta kamayadi B) o`zgarmaydi C) 2 marta ortadi D) 4 marta kamaydi 8 / 25 Elektr sig’imining o’lchov birligi nima ? A) Kulon B) Sekund C) amper D) Farad 9 / 25 Elektr doimiysining son qiymati nechaga teng? A) 9,1*10^-31kg B) -3*10^-19 C C) 3*10^-19 C D) 8,85*10^-12C^2/N*m^2 10 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) Ampermetr B) Areometr C) kondensator D) Voltmetr 11 / 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) 0.2 Ω B) 1 Ω C) 0.5 Ω D) 0.4 Ω 12 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) to'g'ri javob yo'q B) Musbat C) Elektrlanmaydi D) Manfiy 13 / 25 Elektrlanishning necha turi mavjud ? A) 2 B) 5 C) 3 D) 4 14 / 25 Yorug’lik tezligini birinchi bo’lib kim aniqlagan A) J.Uatt B) Rezirfort C) Nyuton D) O.Ryomer 15 / 25 Bitta atom massasini topish formulasini ko’rsating ? A) N=mn∆z B) ν=m/µ C) m=µ/N D) to'g'ri javob yo'q 16 / 25 Elektrolizdan foydalanib ,buyumlarning sirtini qiyin oksidlanadigan metallar bilan qoplash….deyiladi ? A) Ion bog’lanish B) Galvonastegiya C) Galvonaplastina D) eletrlolez 17 / 25 Elektrolidan tok o’tayotganda elektrodlarda modda ajralib chiqish hodisasi……deb ataladi A) Ion bog’lanish B) Suvli eritma C) Turli eritma D) Eletroliz 18 / 25 220 V kuchlanishda 5 A tok olib ishlaydigan dazmolning quvvatini toping ? A) 220 W B) 100 W C) 110W D) 1,1 kW 19 / 25 Elektr tokining quvvati formulasini ko’rsating ? A) P=IU B) I=q/t C) R=I/U D) N=A/t 20 / 25 Bug’ mashinasini kim kashf etgan ? A) Amper B) Kulon C) Jems Uatt D) Volta 21 / 25 220 V kuchlanishda 0,25 A tok olib yonayotgan elektr lampochkadagi tokning quvvatini toping ? A) 55 W B) 550 W C) 5,5 W D) 500 W 22 / 25 manbaning turli qutb (faza) laridan kelayotgan ichki elektr simi ochiq joyining bir-biriga tegib ketishi…….deyiladi? A) Zaryadlar B) Elektr toki C) qisqa tutashuv D) Tok kuchi 23 / 25 Abu Rayhon Beruniy o’z asarlarida magnitni qanday nom bilan atagan ? A) Tabiy magnitlar B) Doimiy magnitlar C) Ohangrabo-temirni tortuvchi D) Suniy magnitlar 24 / 25 Faradey doimiysining son qiymatini toping ? A) 7200 C/mol B) 7800 C/mol C) 8000C/mol D) 96500 C/mol 25 / 25 Elektr toki bajargan ishining asosiy birligi nima? A) amper B) Paskal C) Vatt sekund D) Volt 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
