Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 2-chorak Fizika choraklik 8-sinf Fizika 2-chorak InfoMaster May 5, 2021 880 Ko'rishlar 0 SaqlashSaqlanganOlib tashlandi 0 0 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 2-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) Areometr B) Voltmetr C) kondensator D) Ampermetr 2 / 25 Elektr doimiysining son qiymati nechaga teng? A) 3*10^-19 C B) 8,85*10^-12C^2/N*m^2 C) -3*10^-19 C D) 9,1*10^-31kg 3 / 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) 220 V B) 44 V C) 110 V D) 180 V 4 / 25 bu shartli belgi qanday nomlanadi? A) Tok manbayi B) Qo’ng’iroq C) O’tkazgichlarning tutashtirmasdan kesishishi D) Kalit 5 / 25 Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan? A) hamma javoblar to'g'ri B) yunon olimi Fales Miletskiy C) yunon olimi Aristotel D) grek olimi Arximed 6 / 25 Atom so’zining ma’nosi nima ? A) Bo’linmas B) Zaryad C) Elektr zaryat D) Musbat zaryad 7 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Kulon B) Beruniy C) Rezerfort D) Demokret 8 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) Musbat B) Elektrlanmaydi C) to'g'ri javob yo'q D) Manfiy 9 / 25 Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta? A) 0 ta B) 4 ta C) 2 ta D) 6 ta 10 / 25 Elektrlanishning necha turi mavjud ? A) 5 B) 3 C) 4 D) 2 11 / 25 Qahrabo so’zining ma’nosi nima ? A) Manfiy B) Elektrlanuvchi C) Somon tortuvchi D) Qattiq rezina 12 / 25 Bitta elektron zaryadi nechaga teng ? A) 9,1*10^-31C B) 8,81*10^-19 C) 1,6*10^-19C D) 2,01*10^-19C 13 / 25 Ikkita o`tkazgichlar avval ketma- ket, so`ngra parallel ulandi. Bunda uning umumiy qarsiligi qanday o`zgaradi? A) 2 marta kamayadi B) 4 marta kamaydi C) o`zgarmaydi D) 2 marta ortadi 14 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Musbat zaryad B) Zaryad C) Tok kuchi D) Elektr toki 15 / 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 16 / 25 Uzunligi 1 m, ko’ndalang kesimining yuzi 0,4 mm2 bo’lgan nikelin simning uchlaridagi kuchlanish 2 V gat eng. Shu elektr zanjir orqali o’tayotgan tok kuchini aniqlang? A) 0,8 A B) 2 A C) 4 A D) 9 A 17 / 25 Rezistor uchlaridagi kuchlanish 9 V ga teng . Unda 0,5 A tok utishi uchun uning qarshiligi qancha bo’lishi kerak ? A) 44.4 Ω B) 44 Ω C) 20 Ω D) 18 Ω 18 / 25 Elektr janjiridagi lampochkadan ma’lum vaqt davomida 25 c zaryad o’tib , 75 J ish bajarildi,lampochka qanday elektr kuchlanish ostida yongan? A) 12 V B) 15 V C) 3 v D) 25 V 19 / 25 Tok kuchi formulasi keltirilgan javobni aniqlang? A) U=A/q B) Q=ItU C) R=U/I D) I=q/t 20 / 25 Tok kuchini o’lchaydigan asbob qanday nomlanadi ? A) Elektrometr B) Voltmetr C) Ampermetr D) Elektroskop 21 / 25 Kuchlanishni o’lchaydigan asbob nima diyeladi? A) elektrometr B) voltmeter C) elektroskop D) ampermetr 22 / 25 Tok kuchining o'lchov birligi nima? A) Joul B) Amper C) Kulon D) Volt 23 / 25 Elekt kuchlanishi formulasi berilgan javobni ko’rsating. A) U=A|q B) F=kq/r^2 C) E=U/d D) I=q/t 24 / 25 Elektr zanjirlaridagi Lampochkadan 0,2 A tok o’moqda lampochka speraliorqali 1 minutda nechakulon zaryad o’tadi ? A) 10 C B) 24 C C) 12 C D) 15 C 25 / 25 Elektr zanjirda tokni rostlash uchun qo’llaniladigan turli qarshilikli elektr asbobi qanday nomlanadi ? A) elektroskop B) potensiyometr C) elektrometr D) rezistor 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