818-7 General nonlinear resistor circuit b 十 B B l3 U4=b3+U2 6 KVL: D5 =D1-D2 KCL and U1=Us U6=U3+b2 Jik=f(u)k=2,3,4,5 We have Uk, ik k=1, 2, 3, 4, 5,6§18-7 General nonlinear resistor circuit      = + = − = + − 6 3 2 5 1 2 4 3 2 1 :           KVL      = − − = − − = − 3 4 6 2 5 4 6 1 4 5 : i i i i i i i i i i KCL s s and i i  =  = 1 6 If i k = f k () k = 2,3,4,5 We have k ,i k k = 1,2,3,4,5,6 A B C D C 1 2 3 4 6 5 C3 C1 C2 A B C D − +  s +4 − − +  3 − +  5 s i − +  2 1 i 2 i 6 i 4 i 3 i 5 i