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rabbitdangiu
2 năm trước
Vào những ngày thời tiết như thế nào thì vật dễ bị nhiễm điện do cọ xát? Trời gió mạnh Trời nắng to Trời hanh khô Trời chuẩn bị mưa giông ___________________________ Trong đời sống sinh hoạt, người ta đã ứng dụng tác dụng nhiệt của dòng điện để tạo ra băng kép trong bàn làmô tơ trong máy bơm nước đồng hồ quả lắc nam châm trong quạt điện _______________________________ Khi dùng ampe kế dùng kim chỉ thị để đo cường độ dòng điện trong mạch, hành động nào sau đây là không cần thiết? Kiểm tra kích thước của ampe kế Điều chỉnh kim chỉ thị của ampe kế chỉ đúng vạch số 0 Kiểm tra cách mắc ampe kế trong mạch điện Chọn ampe kế có GHĐ và ĐCNN phù hợp
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