10V 例5 K K处于1时,3-4() K处于2时,132=2() 求:K处于3时,33=? Us I3 R2 解:I3=KU,+KU -0= KU,=2 I32=KU,=2 →1K2=0.6 ∴.3=2+0.6U I33=2+0.6×5=5(A)䀓˖ 2 0.6 5 5( ) I33 u A ֻ5 K༴Ҿ1ᰦˈI31= - 4 (A) K༴Ҿ2ᰦˈI32= 2 (A) ≲˖K༴Ҿ3ᰦˈI33= ? K Us K Us I c 3 1 2 ¯ ® 2 ( 10) 4 32 1 31 1 2 s s I K U I K U K ¯ ® 0.6 2 2 1 K K Us Us ?I 2 0.6 c 3