fizika 8-sinf test 1-4 chorak(1)
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fizika 8- sinf i-chorak 1. tabiatda mavjud bo’lgan eng kichik zaryad miqdori qanchaga teng. a) 1,6*10-19 kl b) 1,6 kl c) 9,1*10-31 kl d) 10 kl 2. ikkita nuqtaviy elektr zaryadlarining o’zoro ta’sir kuchi shu zaryadlarning miqdorlariga to’g’ri proporsional va orasidagi masofaning kvadratiga teskari proporsional. bu qonun kimning ismi bilan nomlangan? a) amper b) joul c) kulon d) volt 3. kulon qonuni formulasini ko’rsating? a) b) c) d) 4. zaryad miqdori q1=-5c bo’lgan sharcha zaryad miqdlri q2=4c bo’lgan huddi shunday sharchaga tekkizildi.ularning zaryad miqdorlari nimaga teng? a) –5c b) –4c c) –3c d) –1c 5. nuqtaviy zaryadning elektr maydon kuchlanganligi ifodasini ko’rsating? a) e=mgh b) e=kq/r2 c) e=mυ2/2 d) e=kx2/2 6. elektr maydon kuchlanganligining o’lchov birligini ko’rsating? a) n/c ...
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