U13 = U12 + U23 = 18,9V B)TA CÓ

Câu 13. a) Ta có: U13 = U12 + U23 = 18,9V b)Ta có: U23 = U13 - U12 = 16V – 12,2V = 3,8V c)Ta có: U12 = U13 - U23 = 14,2V – 6,5V = 7,7V