Kuchlanishi 12 V ga teng bulgan sistemaning umumiy Qarshiligi topilsin? Qarshiliklar bir XIL deb r = Ω qaralsin

A) N dan chiqib S ga kiradi B) S dan chiqib N ga kiradi C) Kaftni teshadi D) TJY
20). Kuzguga tushgan va qaytgan nurlar orasidagi burchak 150° bulsa kuzgu va qaytgan nur orasidagi burchak necha gradus?
A) 30° B) 45° C) 60° D) 15°
21). O'tkazgichdan o'tayotgan Tok kuchi 10A ekanligi malum bulsa , Undagi umumiy kuchlanishni toping? Qarshiliklarni 2Ω dan deb hisoblansin.

A) 10V B) 8V C) 5V D) 2V
22). Magnet Momenti Formulasi ?
A) P_M = IS B) P_M = IBS C) P_M =BS D) P_M = IB
23). Agar Yerning chiziqli tezligi v bulsa unda φ burchak kenglik uchun chiziqli tezlikni toping?
A) ϑ _φ = ϑsinφ B) ϑ _φ = ϑcosφ C) ϑ _φ = ϑctgφ D) ϑ _φ = ϑtgφ
24). Litiy atomining shartli belgisi ₃ Li ⁷ va uning atomi neytral bulsa uning Nuklonlar soni qanday?
A) 10 B) 3 C) 4 D) 7
25).Disk o`z o`qi atroda tekis aylanmoqda. Agar u 7 s vaqt mobaynida 2/3 radianga burilayotgan bo`lsa, uning aylanish davrini toping (s).
A) 21. B) 42. C) 7. D) 8.
26). Akkumulyatorga ulangan kondensator zaryadlanib, E energiya to‘pladi. Bunda akkumulyator qancha energiya sarfladi?
A) 0.5E B) 1E C) 1,5E D) 2E
27). ₁ H ³ - Qanday Zarra ?
A) Vodorod B) Deytriy C) Tritiy D) β- Zarra
28). Jismning tezlik vektori bilan tezlanish vektori orasidagi burchak  = 0° ga teng bo’lsa, jismning harakat turi qanday bo’lishini aniqlang. A) aylana bo’ylab tekis harakat B) to’g’ri chiziqli sekinlanuvchan harakat C) to’g’ri chiziqli tezlanuvchan harakat D) aylana bo’ylab notekis harakat
29). Sestemaning umumiy qarshiligini toping? R ₁ = R ₂ = R ₃ = R ₄ = 3Ω | R ₅ = 6Ω

A) 6Ω B) 3Ω C) 2Ω D) 1Ω
30).5mradiusli aylana bo`ylab harakatlanayotgan jismning yarim davrdagi ko`chishini toping(m). A)5.B)5.C)2,5.D)10.
1D
2B
3D
4B
5A
6A
7C
8A
9B
10A
11D
12D
13C
14C
15B
16A
17A
18D
19A
20D
21B
22A
23B
24X
25X
26D
27C
28X
29c
30A