R = R + R + R + R + R + R A 1 2 3 4 5 6 l m l - l 1 m 0.5 0.4 0.4K 1 0.5 R B R I m R A Rm I 10 0.4 RB 0.04K 10 m R = K 50 0.008K c R = K 100 = 0.004k D
R = K 250 = 0.0016K 5 3 R 3 1 - R R A 6 R + R 0.4 0.4 3 1-0.4 + 0.4 = 2.8K A m m R AR m 25 R11 0.45-0.6 R + R A m