Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 2-chorak Fizika choraklik 8-sinf Fizika 2-chorak InfoMaster May 5, 2021 52 Ko'rishlar 0 SaqlashSaqlanganOlib tashlandi 0 0 8-sinf Fizika 2-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Qahrabo so’zining ma’nosi nima ? A) Qattiq rezina B) Elektrlanuvchi C) Manfiy D) Somon tortuvchi 2 / 25 Qarshiliklari 200 Ω va 300 Ω bo`lgan ikkita elektr lampa parallel ulanib, 240 V tarmoqqa kiritilgan. Umumiy tok kattaligini toping. A) 2 A B) 5 A C) 1.8 A D) 4 A 3 / 25 Akkumulator so’zining ma’nosi nima ? A) To’plovchi B) Tok manbayi C) Zaryadlovchi D) Zaryad oqimi 4 / 25 bu shartli belgi qanday nomlanadi? A) O’tkazgichlarning tutashtirmasdan kesishishi B) Qo’ng’iroq C) Kalit D) Tok manbayi 5 / 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 6 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) kondensator B) Areometr C) Voltmetr D) Ampermetr 7 / 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) 0.4 Ω B) 1 Ω C) 0.2 Ω D) 0.5 Ω 8 / 25 Elektr zaryadining o’lchov birligi nima ? A) Joul B) Amper C) volt D) kulon 9 / 25 Jismlarning elektrlanganlikdarajasini aniqlovchisbob qanday nomlanadi ? A) Elektrometr B) Barometr C) Dinomometr D) Elektroskop 10 / 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 11 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Musbat zaryad B) Elektr toki C) Zaryad D) Tok kuchi 12 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Rezerfort B) Kulon C) Beruniy D) Demokret 13 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Manfiy zaryad B) Musbat zaryad C) Nuqtaviy zaryad D) Elementar zaryad 14 / 25 Tok kuchining o'lchov birligi nima? A) Volt B) Kulon C) Amper D) Joul 15 / 25 Temir moddasining (200C da) solishtirma qashiligi nechaga teng? A) 0,098 B) 0.5 C) 0,4 D) 0.017 16 / 25 Tok kuchini o’lchaydigan asbob qanday nomlanadi ? A) Voltmetr B) Ampermetr C) Elektroskop D) Elektrometr 17 / 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 Ω D) 44.4 Ω 18 / 25 Xonadonlardagi elect tarmog’ining kuchlanishi nechaga teng? A) 500 kV B) 1,5 V C) 5V D) 220 V 19 / 25 Uyali telefon iste'mol qiladigan tok kuchi qanchaga teng ? A) 0.4 A B) 0,2 A C) 0,5 A D) 0,1 A 20 / 25 Elektr janjiridagi lampochkadan ma’lum vaqt davomida 25 c zaryad o’tib , 75 J ish bajarildi,lampochka qanday elektr kuchlanish ostida yongan? A) 3 v B) 12 V C) 25 V D) 15 V 21 / 25 Elektr zanjirlaridagi Lampochkadan 0,2 A tok o’moqda lampochka speraliorqali 1 minutda nechakulon zaryad o’tadi ? A) 24 C B) 15 C C) 10 C D) 12 C 22 / 25 Elektr qashiligi formulasi qaysi javobda keltirilgan? A) R=ρl/S B) Q=I^2Rt C) R=U/I D) I=qt 23 / 25 Elekt kuchlanishi formulasi berilgan javobni ko’rsating. A) I=q/t B) U=A|q C) F=kq/r^2 D) E=U/d 24 / 25 Elektr zanjiridagi lampochkada parallel ulangan voltmeter 1,5 V ni ko’rsatmoqda. Lampochkadan 10 c zaryad o’tganda qancha ish bajariladi A) 20 J B) 220 J C) 155 J D) 15 J 25 / 25 Rezistor so’zining manosi nima ? A) Zaryad B) Tok kuchi C) Qarshilik D) Kuchlanish 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