Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 3-chorak Fizika choraklik 8-sinf Fizika 3-chorak InfoMaster May 5, 2021 363 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 3 0 8-sinf Fizika 3-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 1Vatt.soat necha Jaulga teng ? A) 360 J B) 5600 J C) 5000 J D) 3600 J 2 / 25 220 V kuchlanishda 5 A tok olib ishlaydigan dazmolning quvvatini toping ? A) 110W B) 1,1 kW C) 220 W D) 100 W 3 / 25 Bug’ mashinasini kim kashf etgan ? A) Jems Uatt B) Volta C) Kulon D) Amper 4 / 25 manbaning turli qutb (faza) laridan kelayotgan ichki elektr simi ochiq joyining bir-biriga tegib ketishi…….deyiladi? A) Elektr toki B) Zaryadlar C) Tok kuchi D) qisqa tutashuv 5 / 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) 35,5 mA C) 9mA D) 7 mA 6 / 25 Bitta atom massasini topish formulasini ko’rsating ? A) N=mn∆z B) m=µ/N C) ν=m/µ D) to'g'ri javob yo'q 7 / 25 Cho’ntak fanari lampochkasidagi kuchlanish 4,5 V, tok kuchi 0,2 A bo’lsa ,1minutdaqancha elektr energiya sarflanadi? A) 780 J B) 50 J C) 54 J D) 60 J 8 / 25 Elektr qarshiligi qaysi harf bilan belgilanadi? A) J B) L C) R D) U 9 / 25 Uyali telefon iste'mol qiladigan tok kuchi qanchaga teng ? A) 0,1 A B) 0,2 A C) 0.4 A D) 0,5 A 10 / 25 Tok kuchining o'lchov birligi nima? A) Amper B) Joul C) Volt D) Kulon 11 / 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) 2 A B) 4 A C) 0,8 A D) 9 A 12 / 25 Zaryadi -5*10-8 C bo’lgan nuqtaviy zaryadning 3 sm msofada hosil qilgan elektr maydon kuchlanganligini toping? A) 5,1*10⁶ N/C B) 5*10⁵ N/C C) 6*10⁴ N/C D) 5*10‾⁵ N/C 13 / 25 Elektrlanishning necha turi mavjud ? A) 3 B) 2 C) 5 D) 4 14 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Kulon B) Rezerfort C) Beruniy D) Demokret 15 / 25 Atom so’zining ma’nosi nima ? A) Bo’linmas B) Zaryad C) Musbat zaryad D) Elektr zaryat 16 / 25 Qahrabo so’zining ma’nosi nima ? A) Somon tortuvchi B) Qattiq rezina C) Elektrlanuvchi D) Manfiy 17 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Elektrometr B) Elektroskop C) Dinomometr D) Barometr 18 / 25 bu shartli belgi qanday nomlanadi? A) Kalit B) Qo’ng’iroq C) O’tkazgichlarning tutashtirmasdan kesishishi D) Tok manbayi 19 / 25 Ikkita o`tkazgichlar avval ketma- ket, so`ngra parallel ulandi. Bunda uning umumiy qarsiligi qanday o`zgaradi? A) 2 marta kamayadi B) 2 marta ortadi C) 4 marta kamaydi D) o`zgarmaydi 20 / 25 Akkumulator so’zining ma’nosi nima ? A) Tok manbayi B) Zaryadlovchi C) Zaryad oqimi D) To’plovchi 21 / 25 Bitta elektron zaryadi nechaga teng ? A) 1,6*10^-19C B) 8,81*10^-19 C) 2,01*10^-19C D) 9,1*10^-31C 22 / 25 Elektr sig’imining o’lchov birligi nima ? A) Kulon B) Sekund C) amper D) Farad 23 / 25 Elektr zaryadining o’lchov birligi nima ? A) kulon B) volt C) Amper D) Joul 24 / 25 Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta? A) 4 ta B) 2 ta C) 6 ta D) 0 ta 25 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Manfiy zaryad B) Nuqtaviy zaryad C) Elementar zaryad D) Musbat zaryad 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 Tomonidan Wordpress Quiz plugin Author: InfoMaster Foydali bo'lsa mamnunmiz
