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Physics, 17.06.2021 09:40 sallyguzman4263

Một dây dẫn mảnh được uốn thành một cung tròn bán kính 10cm, góc ở tâm
bằng 1200
, đặt trong không khí. Trong
dây dẫn có dòng điện cường độ 30A
chạy qua. Độ lớn của cảm ứng từ tại
tâm của cung tròn là bao nhiêu ?

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Một dây dẫn mảnh được uốn thành một cung tròn bán kính 10cm, góc ở tâm
bằng 1200
, đặt...

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