(1)R总=220*220/1100=44(欧);
R0=44-20=24(欧);
(2)P总(130度时)=220*220/(100+24)=390(W).
I=220/124=1.774(A);
P(RT)=1.774*1.774*100=314.7(W).
(1)R总=220*220/1100=44(欧);
R0=44-20=24(欧);
(2)P总(130度时)=220*220/(100+24)=390(W).
I=220/124=1.774(A);
P(RT)=1.774*1.774*100=314.7(W).