Vaqt necha o`lchamli? A bir b ikki c uch d to`rt

9
10
B	A	A	B	C	D	C	A	C	B

8-sinf
II-chorak

1. 
   Qarshilik birligi? A) Amper B) Volt C) Om D) Vatt
   
2. 
   Qarshilik o`zgartirilmasdan kuchlanish oshirilsa zanjirdagi tok kuchi qanday o`zgaradi? A) o`zgarmaydi B) Ortadi C) kamayadi D) aniqlab bo`lmaydi
   
3. 
   R- bu…. A) Qarshilik B) kuchlanish C)Tok kuchi D) Ish
   
4. 
   Ampermetr elektr zanjirga ….. ulanadi. A) Ketma-ket B) parallel C) aralash D) ixtiyoriy
   
5. 
   Qarshiliklari 15 va 10 Om bo`lgan istemolchilar ketma-ket ulansa umumiy qarshilik nimaga teng? A) 6 B) 150 C) 1.5 D)25
   
6. 
   Kuchlanishi 127 volt bo`lgan zanjirga ulangan elektr plita spiralidagi tok kuchi 5,2 A ga teng. Spiralning qarshiligini toping. A. 24 Ω B. 25 Ω C. 127 Ω D. 5.2 Ω
   
7. 
   1kΩ necha Ω? A) 100 B)1000 C) 10000 D)10
   
8. 
   Kuchlanishni o`lchovchi asbob…. A) Ampermetr B ) Rezistor C) voltmetr D) Reostat
   
9. 
   Agar 100 C zaryadni ko`chirish uchun 1,2 KJ ish bajarsa, lampochkada qanday kuchlanish bo`ladi? A. 0,012 V B.12 V . C.120 V. D.1,2 V
   
10. 
    10000V necha MV? A) 10 B) 100 C)0.01 D)0.1
    

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