Mesh analysis. L1 )=42 L2:=3(i1-i2)+4i2=10 42J 0( 6A =44 We define a mesh current as a current. which flows onl around the perimeter of a mesh. L1:6im+3(i )=42 (1)h2少+41210 42M 0 =64 十 i= 4A a mesh current may often be identified as a branch current,(支路中只有一个网孔电流通过时,有=uand (2)Mesh analysis: L : 6i 3(i i ) 42 1 1 + 1 − 2 = L : 3(i i ) 4i 10 2 − 1 − 2 + 2 =    = = i A i A 4 6 2 1 We define a mesh current as a current, which flows only around the perimeter of a mesh. L : 6i 3(i i ) 42 1 ( 1 ) + ( 1 ) − ( 2 ) = L : 3(i i ) 4i 10 2 − ( 1 ) − ( 2 ) + ( 2 ) =    = = = = i i A i i A 4 6 2 (2) 1 (1) A mesh current may often be identified as a branch current,—(支路中只有一个网孔电流通过时，有i1=i (1) and i2=i (2)) − + 42V i 1 6 4 3 2 i 3 1 2 i = i − i + − 10V L1 L2 − + 42V i 1 6 4 3 2 i 3 1 2 i = i − i + − L1 10V L2 ( ) i 1 ( ) i 2