... 25,025,0j25,025,0j25,0 )2 5,0 )( 1 20 3 20 () 45225,0 )( 1 20 3 20 () 45225, 0( 3 20oooo+−++∠+−∠−∠+∠ = 37 5,0 )1 20 5 () 1652 5 () 452 5( ooo∠+−∠+∠ = 37 5,0 35 ,2j5,2 83, 1j 83, 65j5+−−−+ = - 3, 333 2 + j5,7 736 (V) . Áp pha ... NGHIỆP TP - HCM GIẢI BÀI TẬP ĐKTCĐ =5,0j5,0j5,0 )9 05,0 )( 1 202 0 () 905,0 )( 1 202 0 () 5, 0(2 0oooo+−∠∠+−∠−∠+ = 5,0 )2 101 0 () 2101 0(1 0oo∠+−∠+ = 5,05j355j3510 −−+− = - 14,641 (V) . Áp đặt vào ... 212PoZ 30 380ϕ∠∠ , với ϕ2 = Arctg8060− = - 36 ,87o → I&A2B2 = 3, 8 (3 0o + 36 ,87o ) = 3, 8∠66,87o (A) → I&A2 = 3, 8 3 (6 6,87o – 30 o ) = 3, 8 3 36 ,87o = 5,27 + j3,95 (A)...