Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 3-chorak Fizika choraklik 8-sinf Fizika 3-chorak InfoMaster May 5, 2021 611 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 3 1 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 3-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Rezistor uchlaridagi kuchlanish 9 V ga teng . Unda 0,5 A tok utishi uchun uning qarshiligi qancha bo’lishi kerak ? A) 20 Ω B) 18 Ω C) 44.4 Ω D) 44 Ω 2 / 25 Xonadonlardagi elect tarmog’ining kuchlanishi nechaga teng? A) 500 kV B) 220 V C) 1,5 V D) 5V 3 / 25 Rezistor so’zining manosi nima ? A) Kuchlanish B) Qarshilik C) Zaryad D) Tok kuchi 4 / 25 Elekt kuchlanishining ulchov birligi nima? A) Amper B) Volt C) Kulon D) Sekund 5 / 25 Elektr zanjirlaridagi Lampochkadan 0,2 A tok o’moqda lampochka speraliorqali 1 minutda nechakulon zaryad o’tadi ? A) 15 C B) 10 C C) 24 C D) 12 C 6 / 25 Elektr zanjirda tokni rostlash uchun qo’llaniladigan turli qarshilikli elektr asbobi qanday nomlanadi ? A) elektroskop B) potensiyometr C) elektrometr D) rezistor 7 / 25 Elektr zanjirida 2 m va ko’ndalang kesimining yuzi 0,5 mm2 bo’lgan nixrom simning qarshiligini toping ? A) 220 Ω B) 2,2 Ω C) 4,4 Ω D) 440 Ω 8 / 25 Elektrlanishning necha turi mavjud ? A) 5 B) 2 C) 3 D) 4 9 / 25 Akkumulator so’zining ma’nosi nima ? A) Zaryad oqimi B) Tok manbayi C) Zaryadlovchi D) To’plovchi 10 / 25 Zaryadi -5*10-8 C bo’lgan nuqtaviy zaryadning 3 sm msofada hosil qilgan elektr maydon kuchlanganligini toping? A) 6*10⁴ N/C B) 5*10‾⁵ N/C C) 5*10⁵ N/C D) 5,1*10⁶ N/C 11 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Elektr toki B) Musbat zaryad C) Zaryad D) Tok kuchi 12 / 25 Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan? A) grek olimi Arximed B) yunon olimi Fales Miletskiy C) yunon olimi Aristotel D) hamma javoblar to'g'ri 13 / 25 Qahrabo so’zining ma’nosi nima ? A) Qattiq rezina B) Somon tortuvchi C) Elektrlanuvchi D) Manfiy 14 / 25 bu shartli belgi qanday nomlanadi? A) Qo’ng’iroq B) Tok manbayi C) O’tkazgichlarning tutashtirmasdan kesishishi D) Kalit 15 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Elektrometr B) Dinomometr C) Barometr D) Elektroskop 16 / 25 Atom so’zining ma’nosi nima ? A) Musbat zaryad B) Bo’linmas C) Zaryad D) Elektr zaryat 17 / 25 Elektr tokining bajargan ishini formulasini ko’rsating toping ? A) A=UIT B) J=q/t C) Q=I^2RT D) R=UI 18 / 25 Elektrolizdan foydalanib ,buyumlarning sirtini qiyin oksidlanadigan metallar bilan qoplash….deyiladi ? A) Galvonaplastina B) Galvonastegiya C) Ion bog’lanish D) eletrlolez 19 / 25 Yorug’lik tezligini birinchi bo’lib kim aniqlagan A) O.Ryomer B) Rezirfort C) Nyuton D) J.Uatt 20 / 25 Bitta atom massasini topish formulasini ko’rsating ? A) ν=m/µ B) to'g'ri javob yo'q C) N=mn∆z D) m=µ/N 21 / 25 Elektrolidan tok o’tayotganda elektrodlarda modda ajralib chiqish hodisasi……deb ataladi A) Eletroliz B) Turli eritma C) Ion bog’lanish D) Suvli eritma 22 / 25 Gaz orqali elektr toki o’tish jarayoni …..deyiladi ? A) Ion bog’lanish B) Elektroliz C) Gaz razryadi D) Uchqun 23 / 25 1,5 soat davom etgan elektrolizda katodda 15 mg nikel yig’iladi.Elektroliz vaqtida eletrolitdan o’tagan tok kuchini toping ? A) 7 mA B) 35,5 mA C) 9mA D) 25 mA 24 / 25 1Vatt.soat necha Jaulga teng ? A) 5600 J B) 5000 J C) 3600 J D) 360 J 25 / 25 Abu Rayhon Beruniy o’z asarlarida magnitni qanday nom bilan atagan ? A) Suniy magnitlar B) Doimiy magnitlar C) Ohangrabo-temirni tortuvchi D) Tabiy magnitlar 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
