English, 16.12.2021 14:00 jesus319

Hai bóng đèn 220V- 110W được mắc song song vào hiệu điện thế 220V tính: a. Cường độ dòng điện chạy qua mỗi bóng đèn

b. Cường độ dòng điện chạy qua mạch chính

c.Điện năng tiêu thụ của hai bóng đèn trong 5 giờ

d. Tiền điện phải trả cho hai bóng đèn trong một tháng (30 ngày). Biết thời gian dùng điện trung bình mỗi ngày là 5 giờ và giá điện là 1900đ/Kwh.

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Hai bóng đèn 220V- 110W được mắc song song vào hiệu điện thế 220V tính: a. Cường độ dòng điện chạy...

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