D
duing


cho doan mach sau:A N B
giua AN la RntC
giua NB la hop X khoa =Khoa K
uAB=Ucan2 cos wt
khi k dong:U(R)=200V ,U(C)=150V
khi k mo :U(AN)=150V ,U(NB)=200V
xac dinh X (Ro,Lo)
giua AN la RntC
giua NB la hop X khoa =Khoa K
uAB=Ucan2 cos wt
khi k dong:U(R)=200V ,U(C)=150V
khi k mo :U(AN)=150V ,U(NB)=200V
xac dinh X (Ro,Lo)