20047

()

4.1

4.1

4.1 im1im2 im3 KVL KCL im1im2im3

4.1 R111R222R333 R12 = R211212 Vs111

4.1 m RI = VS I VS R Rii iRij ijRij = Rji

4.1

4.1

4.1 m RI = VSI VS R Rii iRij ijRij = Rji

4.1 RiR iR= i2= - 4880/5104 = - 0.956A

4.1 i2 = im1- im2 R12 R21

4.1 () I1=IS-R1I1+(R1+R3+R4)I2-R4I3=-VS3-VS4-R2I1-R4I2+(R2+R4+R5)I3=VS4

4.1 Ri V1 I1Ri= V1/ I1

4.2

4.2 () ()

4.2 KCLKVLvn1vn2vn3

4.2 G11G22G33 G12G21 is11

4.2 n GV = ISV ISG, Gii iGij ijGij = Gji

4.2

4.2 vn1 = 11.30 V vn2 = -22.32 V

i1

4.2 v2 = vn1-vn2

4.2 io ,ia=ib = 0, vn1-vn2=0

4.2 ()5vn1=vS56vn2-vn3=vS6

4.2 (1) 0

4.2 (1) (2) 123

4.2 VnaVnbVnc a (0.15+0.2)Vna - 0.15Vnb - 0.2Vnc = -11 -(0.15+0.2)Vna+(0.05+0.15)Vnb+(0.25+0.2)Vnc=28 -Vnb+Vnc=440

4.2 VnaVnbVnc ix

4.2 VnaVnbVnc ix 2Vna -5Vnb +5Vnc =360 b-2Vna +6Vnb -3Vnc = 0 2Vnb +Vnb-3Vnc = 0 ix =0.3A