P=100W=Pz+PR
Pz=100-50^2/50=50W=2^2xRz
Rz=50/4=12.5OΩ
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æ ååçQL为1.73x50=58.5Var
æ»Q=Qz+QL=-100Varï¼ä¸º
容æ§è´è½½ï¼Qz=-100-58.5=-158.5Var
Qz=I^2xZcï¼Zc=-158.5/4=-39.6Ωã
Z=12.5-j39.6