8 sinflar uchun Ikki jasm bir -biriga ishqalanganda nima yuz beradiq
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8 sinflar uchun
3-курс дар жадвал 17.02.2020, file, бюджетлараро муногсабатлар, jumayeva, hayitova Nilufar, barotova, nutfullayeva Maftuna, dars rejasi, протокол, shaxs-psixologiyasi-shaxs-taraqqiyotining-davrlarga-bolinishi-motiv-va-motivatsiya, 3412120805, 7-s test, TEST 3-SINF, Blaknot dasturini ochamiz VIRUS DASTURI
8 sinflar uchun 1. Ikki jasm bir –biriga ishqalanganda nima yuz beradiq a) Tortishish b) Elektrlanish s) yaqinlashadi d) Uzoqlashadi 2. Geliy atomida nechta protan va nechta electron borq a) 4ta proton 3ta elektron b) 3 ta proton 2ta electron s) 4ekektron 4ta proton d) 2ta proton 2ta electron 3. Bitta elektronning massasi qanchaga teng bo’ladiq a) m e =9,1.10 -31ng b) m e =8,1.10 -33ng s) me=12.10-31kg d) m e =9,1.10 -21ng 4. Kulon qonuni qanday formulada ko’rsatilganq a) F=G m 1.m2 b) F=k q1 q2 s) F=m.a d) K=F r2 r 2 r 2 q1.q2 5. Maydon kuchlanganligini asosiy birligi nimaq a) N/kg b) N/m s) m/s d) N.C 6. Elektronning zaryadi qanchaga teng bo’ladiq a) e=1,4.10-19C b) e=1,8.10-19C s) c=1,8.10-19c d) e=-1,6.10-19C 7. Mo’ynaga ishqalangan ebonite tayoqcha qanday ishorali elektrlanadiq a) Manfiy b) Musbat s) Zaryadsiz d) Musbat va manfiy 8.Zaryadlari 1C dan bo’lgan ikkita jism orasidagi masofa qancha bo’lganda o’zaro ta’sir kuchi 1N bo’ladiq a) 8,49.104 m b) 9, 49.104 m s) 6,49.104m d) 79, 49.104m 9. Uzliksiz zaryadlarni qanday asbob bilan hosil qilish mumkunq a) Elektroskop b) Elektrofor s) Momometr d) Elektrometr 10. Dielektriklardan nimalar tayyorlanadiq a) kondinsatorlar b) qarshiliklar s) lampochkalar d) izolyatorlar 2 chorak
11. Metallarda elektr tokini qanday zarra o’tkazadiq
3 chorak
21.Elеktr qarshilik qanday formula bilan yoziladi. A)Z=U B)V=S S) R=S L D)F=m.a
4 chorak
A) neytron , praton B) yadro va elektron C) Ion va elektron D) Ion va Praton 32. Parallel ulash qanday formula bilan yoziladi ? A) C=C1 +C2 1 1 1 A B) ---- = ---- + ---- C) Uq ---- D) UqJ . R C C1 C2 q 33. Elektr sig`imining birligi nima ? A) Kulon B) Volt C) Farad D) Amper 34. Elektr toki hosil bo`lishi uchun nechta shart bulishi kerak ? A) 2 ta B) 3 ta C) 4 ta D) 5 ta 35. Voltimetirning belgisi qanday buladi ? A) B) V C) A D) --|___|-- 36. Reostat nima vazifani bajaradi ? A) qarshilikni o`lchaydigan asbob B) Kuchlanishni o`lchaydigan asbob C) Tok kuchini rostlaydigan D)Tokni o`lchaydi 37.Elektr toki quvvati qanday formula bilan yoziladi ? q U A) J q ---- B) A qJ . U . t C) PqU . J D) J q ----- t R 38. Kuchlanishning birligi nima ? A) Amper B) Volt C) Joul D) Kulon 39. Tok kuchi qanday formula bilan yoziladi ? F q A A) P q ---- B) P qU . S C) J q ----- D) U q ------ S t q 40. Metall o`zgargichlarda elektr tokini nimalar hosil qiladi ? A) Erkin elektronlar B) Ionlar C) Platonlar D) Neytronlar Download 26.48 Kb. Do'stlaringiz bilan baham: |
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