Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 3-chorak Fizika choraklik 8-sinf Fizika 3-chorak InfoMaster May 5, 2021 486 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 3 0 Tomonidan yaratilgan InfoMaster 8-sinf Fizika 3-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Uyali telefon iste'mol qiladigan tok kuchi qanchaga teng ? A) 0,1 A B) 0,5 A C) 0,2 A D) 0.4 A 2 / 25 Elektr zanjiridagi lampochkada parallel ulangan voltmeter 1,5 V ni ko’rsatmoqda. Lampochkadan 10 c zaryad o’tganda qancha ish bajariladi A) 15 J B) 155 J C) 220 J D) 20 J 3 / 25 Temir moddasining (200C da) solishtirma qashiligi nechaga teng? A) 0,098 B) 0.5 C) 0.017 D) 0,4 4 / 25 Tok kuchining o'lchov birligi nima? A) Amper B) Joul C) Kulon D) Volt 5 / 25 Elekt kuchlanishi formulasi berilgan javobni ko’rsating. A) F=kq/r^2 B) I=q/t C) U=A|q D) E=U/d 6 / 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) 0,5 A D) 6 A 7 / 25 Xonadonlardagi elect tarmog’ining kuchlanishi nechaga teng? A) 500 kV B) 220 V C) 1,5 V D) 5V 8 / 25 Elekt kuchlanishining ulchov birligi nima? A) Sekund B) Volt C) Amper D) Kulon 9 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Musbat zaryad B) Tok kuchi C) Zaryad D) Elektr toki 10 / 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) 220 V C) 110 V D) 44 V 11 / 25 Akkumulator so’zining ma’nosi nima ? A) To’plovchi B) Zaryadlovchi C) Tok manbayi D) Zaryad oqimi 12 / 25 O’lchami va shakli hisobga olinmaydigan zaryadlangan jism qanday nomlanadi ? A) Elementar zaryad B) Nuqtaviy zaryad C) Manfiy zaryad D) Musbat zaryad 13 / 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) 4 A D) 1.8 A 14 / 25 Elektr zaryadining o’lchov birligi nima ? A) kulon B) Joul C) Amper D) volt 15 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) Elektrlanmaydi B) Manfiy C) Musbat D) to'g'ri javob yo'q 16 / 25 Bitta elektron zaryadi nechaga teng ? A) 8,81*10^-19 B) 2,01*10^-19C C) 1,6*10^-19C D) 9,1*10^-31C 17 / 25 Ishqalangan jismlarning tortishish hodisasini birinchi bo’lib kim aytgan? A) yunon olimi Aristotel B) grek olimi Arximed C) hamma javoblar to'g'ri D) yunon olimi Fales Miletskiy 18 / 25 Ionlar orasida Kulon kuchi tufayli vijudga keladigan kimyoviy bog’lanish……deb ataladi? A) Elektrolitlar B) Ionli bog’lanish C) Qutbli bog’lanish D) Kovalent bog’lanish 19 / 25 Abu Rayhon Beruniy o’z asarlarida magnitni qanday nom bilan atagan ? A) Doimiy magnitlar B) Ohangrabo-temirni tortuvchi C) Suniy magnitlar D) Tabiy magnitlar 20 / 25 1Vatt.soat necha Jaulga teng ? A) 3600 J B) 5000 J C) 5600 J D) 360 J 21 / 25 Yorug’lik tezligini birinchi bo’lib kim aniqlagan A) O.Ryomer B) Nyuton C) J.Uatt D) Rezirfort 22 / 25 Elektr tokining quvvati formulasini ko’rsating ? A) P=IU B) I=q/t C) R=I/U D) N=A/t 23 / 25 Cho’ntak fanari lampochkasidagi kuchlanish 4,5 V, tok kuchi 0,2 A bo’lsa ,1minutdaqancha elektr energiya sarflanadi? A) 50 J B) 780 J C) 60 J D) 54 J 24 / 25 Faradey doimiysining son qiymatini toping ? A) 8000C/mol B) 7200 C/mol C) 7800 C/mol D) 96500 C/mol 25 / 25 manbaning turli qutb (faza) laridan kelayotgan ichki elektr simi ochiq joyining bir-biriga tegib ketishi…….deyiladi? A) Zaryadlar B) qisqa tutashuv C) Tok kuchi D) Elektr toki 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
