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mailoan8986
2 năm trước
a)cường độ dòng điện chạy qua một dây dẫn là 0,5A khi nó mắc vào hiệu điện thế là 6V.Muốn cường độ dòng điện chạy qua dây dẫn này tăng thêm 1,5A thì hiệu điện thế đặt vào hai đầu dây dẫn này phải bằng bao nhiêu? b) Một dây dẫn mắc vào hiệu điện thế 12V thì cường độ dòng điện chạy qua nó là 2A.Nếu hiệu điện thế đặt vào hai đầu dây dẫn là 36V thì dòng điện chạy qua dây dẫn đó có cường độ bằng bao nhiêu? giúp em với ❤️❤️
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