vannam111100 vannam111100
  • 09-01-2024
  • Mathematics
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1 bóng đèn có ghi( 220V - 100 W) mắc vào mạch điện xoay chiều cóđiệnáp u=231 2sin 314t π (v). 6 Xác định dòng điện trong mạch và công suất bóng đèn tiêu thụ.

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