Uy » Choraklik online testlar » Fizika choraklik » 8-sinf Fizika 3-chorak Fizika choraklik 8-sinf Fizika 3-chorak InfoMaster May 5, 2021 310 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 3 0 8-sinf Fizika 3-chorak Testni Shirinboyev Temurbek tayyorladi. 1 / 25 Atom tuzilishi modulini kim kashf etgan ? A) Demokret B) Rezerfort C) Kulon D) Beruniy 2 / 25 Shoyi matoga ishqalangan shisha tayoqcha qanday ishorada elektrlanib qoladi? A) to'g'ri javob yo'q B) Elektrlanmaydi C) Musbat D) Manfiy 3 / 25 Zaryadli zarralarning tartibli harakati,ya’ni oqiminima deb nomlanadi? A) Elektr toki B) Zaryad C) Tok kuchi D) Musbat zaryad 4 / 25 Elektr zaryadining o’lchov birligi nima ? A) Joul B) kulon C) volt D) Amper 5 / 25 Ikkita o`tkazgichlar avval ketma- ket, so`ngra parallel ulandi. Bunda uning umumiy qarsiligi qanday o`zgaradi? A) 2 marta ortadi B) 4 marta kamaydi C) o`zgarmaydi D) 2 marta kamayadi 6 / 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) 44 V D) 110 V 7 / 25 Bitta elektron massasi nechaga teng ? A) 1,6*10^-19kg B) 9,1*10^-31kg C) 8,81*10^-19kg D) 3,36*10^-32kg 8 / 25 Elektr zaryadlarini to’plash uchun mo’ljallangan asbob qanday nomlanadi? A) kondensator B) Areometr C) Ampermetr D) Voltmetr 9 / 25 Akkumulator so’zining ma’nosi nima ? A) Zaryadlovchi B) Tok manbayi C) To’plovchi D) Zaryad oqimi 10 / 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 11 / 25 Elektrlanishning necha turi mavjud ? A) 4 B) 2 C) 5 D) 3 12 / 25 Atom yadrosida ikkita proton va ikkita neytron bor. Undagi elektronlar soni nechta? A) 6 ta B) 2 ta C) 4 ta D) 0 ta 13 / 25 Elekt kuchlanishining ulchov birligi nima? A) Kulon B) Amper C) Sekund D) Volt 14 / 25 Tok kuchining o'lchov birligi nima? A) Kulon B) Amper C) Volt D) Joul 15 / 25 Elektr janjiridagi lampochkadan ma’lum vaqt davomida 25 c zaryad o’tib , 75 J ish bajarildi,lampochka qanday elektr kuchlanish ostida yongan? A) 25 V B) 3 v C) 12 V D) 15 V 16 / 25 Elekt kuchlanishi formulasi berilgan javobni ko’rsating. A) F=kq/r^2 B) U=A|q C) I=q/t D) E=U/d 17 / 25 Tok kuchini o’lchaydigan asbob qanday nomlanadi ? A) Elektroskop B) Ampermetr C) Voltmetr D) Elektrometr 18 / 25 Cho’ntak fanari lampochkasidagi kuchlanish 4,5 V, tok kuchi 0,2 A bo’lsa ,1minutdaqancha elektr energiya sarflanadi? A) 50 J B) 60 J C) 780 J D) 54 J 19 / 25 Tok o’tayotgan o’tkazgich atrofida magnit maydon bor ekanligini ko’rsatgan tajriba qaysi olim nomi bilanbog’liq ? A) Volta B) Ersted C) Amper D) Joul 20 / 25 manbaning turli qutb (faza) laridan kelayotgan ichki elektr simi ochiq joyining bir-biriga tegib ketishi…….deyiladi? A) Zaryadlar B) Tok kuchi C) Elektr toki D) qisqa tutashuv 21 / 25 Elektr tokining quvvati formulasini ko’rsating ? A) I=q/t B) R=I/U C) N=A/t D) P=IU 22 / 25 Yorug’lik tezligini birinchi bo’lib kim aniqlagan A) O.Ryomer B) J.Uatt C) Rezirfort D) Nyuton 23 / 25 Bitta atom massasini topish formulasini ko’rsating ? A) to'g'ri javob yo'q B) N=mn∆z C) m=µ/N D) ν=m/µ 24 / 25 Elektr tokining bajargan ishini formulasini ko’rsating toping ? A) A=UIT B) J=q/t C) Q=I^2RT D) R=UI 25 / 25 Natriy (Na) atomida nechta electron bor ? A) 10 ta B) 11 ta C) 9 ta D) 12 ta 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
