3-NAZORAT ISHI
Nazorat shakli: Yozma ish
1 Qarshiligi 3 Ω bo’lgan tarmoqdan o’tayotgan tokning kuchi 2A. Qarshiligi 2 Ω bo’lgan tarmoqdan o’tayotgan tok kuchini toping?
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2 2 va 6 qarshilikka ega bo’lgan o’tkazgichlar o’zaro parallel ulangan zanjirning tarmoqlanmagan qismidagi tok kuchi 12 A ga teng bo’lsa, o’tkazgichlar uchlaridagi kuchlanish qanday (V) bo’ladi?
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3 Ikkita o’tkazgich ketma-ket ulanganda 10 Ω, parallel ulanganda esa 1.6 Ω qarshilik hosil bo’ldi. Shu o’tkazgichlarning qarshiligini aniqlang (Ω). __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
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4-NAZORAT ISHI
Nazorat shakli: Yozma ish
1. Yakkalangan o'tkazgichga 3∙10-9 С zaryad berilganda, uning potensiali 120 V ga teng bo'ldi. O'tkazgichning elektr sig'imini toping (F)
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2. Sig'imlari C1=3 μF, C2=12 μF va C3=30 μF bo'lgan uchta kondensator rasmdagi sxema bo'yicha ulangan. Umumiy sig'im qanday (μF)?
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3. Sig‘imi 370 pF bo‘lgan yassi kondensator qoplamalarining yuzasi 300 sm2 ga teng. Qoplamalar orasiga shisha plastina qo‘yilgan bo‘lsa, bunday sig‘imli kondensator qoplamalari orasi qancha bo‘lishi kerak? Shisha uchun ε = 7.
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