解ï¼Z1=R+jX1=10+j6.28=11.81â 32.13°ï¼Î©ï¼ï¼Z2=R2-jX2=20-j31.9=37.65â -57.91°ï¼Î©ï¼ã
Z1â¥Z2=Z1ÃZ2/ï¼Z1+Z2ï¼=11.81â 32.13°Ã37.65â -57.91°/ï¼10+j6.28+20-j31.9ï¼=444.6465â -25.78°/ï¼30-j25.62ï¼=444.6465â -25.78°/39.45â -40.5°=11.27â 14.72°=10.9+j2.86ï¼Î©ï¼ã
ï¼1ï¼Z=Z3+Z1â¥Z2=R3+jX3+Z1â¥Z2=15+j15.7+10.9+j2.86=25.9+j18.56=31.86â 35.63°ï¼Î©ï¼ã
ï¼2ï¼æ»çµæµï¼Iï¼ç¸éï¼=Uï¼ç¸éï¼/Z=220â 0°/31.86â 35.63°=6.91â -35.63°ï¼Aï¼ï¼å³ï¼I=6.91Aã
并èæ¯è·¯çµåï¼U1ï¼ç¸éï¼=Iï¼ç¸éï¼Ãï¼Z1â¥Z2ï¼=6.91â -35.63°Ã11.27â 14.72°=77.88â -20.91°ï¼Vï¼ã
æ以ï¼I1ï¼ç¸éï¼=U1ï¼ç¸éï¼/Z1=77.88â -20.91°/11.81â 32.13°=6.6â 53.04°ï¼Aï¼ï¼å³I1=6.6Aã
I2ï¼ç¸éï¼=U1ï¼ç¸éï¼/Z2=77.88â -20.91°/37.65â -57.91°=2.07â 37°ï¼Aï¼ï¼å³I2=2.07Aã