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UR=5Râ 45º
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U=IXc+UR=(5â2â 0º)(Xcâ -90º)+5Râ 45º=100â 0º
5â2Xcâ -90º+5Râ 45º=100â 0º
5â2Xccos(-90º)+j5â2Xcsin(-90º)+5Rcos(45º)+j5Rsin(45º)=100
-j5â2Xc+5R/â2+j5R/â2=100
5R/â2+j(5R/â2-5â2Xc)=100
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5R/â2-5â2Xc=0ï¼
5R/â2=5â2Xc
R/â2=â2Xc
R=2Xc
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5R/â2=100
R=â2x20=28.28Ω
Xc=R/2=14.14Ω
XL=R=28.28Ω
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