Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 3-chorak Fizika choraklik 8-sinf Fizika 3-chorak InfoMaster May 5, 2021 752 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 4 2 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 3-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Gaz orqali elektr toki o’tish jarayoni …..deyiladi ? A) Ion bog’lanish B) Uchqun C) Gaz razryadi D) Elektroliz 2 / 25 Cho’ntak fanari lampochkasidagi kuchlanish 4,5 V, tok kuchi 0,2 A bo’lsa ,1minutdaqancha elektr energiya sarflanadi? A) 54 J B) 780 J C) 50 J D) 60 J 3 / 25 1Vatt.soat necha Jaulga teng ? A) 3600 J B) 360 J C) 5000 J D) 5600 J 4 / 25 Bug’ mashinasini kim kashf etgan ? A) Amper B) Volta C) Kulon D) Jems Uatt 5 / 25 Elektr toki bajargan ishining asosiy birligi nima? A) Vatt sekund B) amper C) Volt D) Paskal 6 / 25 1,5 soat davom etgan elektrolizda katodda 15 mg nikel yig’iladi.Elektroliz vaqtida eletrolitdan o’tagan tok kuchini toping ? A) 25 mA B) 9mA C) 7 mA D) 35,5 mA 7 / 25 Temir moddasining (200C da) solishtirma qashiligi nechaga teng? A) 0.017 B) 0,098 C) 0.5 D) 0,4 8 / 25 Tok kuchi formulasi keltirilgan javobni aniqlang? A) U=A/q B) I=q/t C) R=U/I D) Q=ItU 9 / 25 Tok kuchining o'lchov birligi nima? A) Volt B) Joul C) Kulon D) Amper 10 / 25 Uyali telefon iste'mol qiladigan tok kuchi qanchaga teng ? A) 0,2 A B) 0,1 A C) 0.4 A D) 0,5 A 11 / 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) 44.4 Ω C) 20 Ω D) 18 Ω 12 / 25 Elektr zanjiridagi lampochkadan 5 minutda 30 C zaryad o’tgani ma’lum. Zanjirdagi ampermetr lampochkadan qancha tok o’tayotganini ko’rsating? A) 6 A B) 0,1 A C) 0,4 A D) 0,5 A 13 / 25 Kuchlanishni o’lchaydigan asbob nima diyeladi? A) voltmeter B) elektrometr C) ampermetr D) elektroskop 14 / 25 Elektr qashiligi formulasi qaysi javobda keltirilgan? A) I=qt B) R=ρl/S C) R=U/I D) Q=I^2Rt 15 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Zaryad B) Elektr toki C) Tok kuchi D) Musbat zaryad 16 / 25 bu shartli belgi qanday nomlanadi? A) Kalit B) O’tkazgichlarning tutashtirmasdan kesishishi C) Qo’ng’iroq D) Tok manbayi 17 / 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 18 / 25 Bitta elektron zaryadi nechaga teng ? A) 9,1*10^-31C B) 1,6*10^-19C C) 8,81*10^-19 D) 2,01*10^-19C 19 / 25 Elektr zaryadining o’lchov birligi nima ? A) Joul B) kulon C) volt D) Amper 20 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Beruniy B) Kulon C) Rezerfort D) Demokret 21 / 25 Atom so’zining ma’nosi nima ? A) Musbat zaryad B) Bo’linmas C) Elektr zaryat D) Zaryad 22 / 25 Elektr sig’imining o’lchov birligi nima ? A) Farad B) amper C) Kulon D) Sekund 23 / 25 Jismlarning elektrlanganligini sezish ,kuzatish uchun qo’llaniladigan asbob qanday nomlanadi ? A) Areometr B) Barametr C) spedometr D) Elektroskop 24 / 25 Elektrlanishning necha turi mavjud ? A) 5 B) 2 C) 3 D) 4 25 / 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 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
