Using the triangle/star transformation formula, the unbalanced bridge circuit is simplified to a simple series-parallel circuit. Then use the knowledge of middle school to solve the problem.

A, B and C on the left form a triangle, and the right is a star.

/link? URL = 009 thccvfoipz 5 _ h0 ybkddmwq _ yFDWEXE-afnqlkxhv 89 lbukmguzb x86 _ tpjv 3k 5 ykwx 3 Fe 9 tcfqwsq 5 xkhn-jxic 6 by 3 AIU 04 z 5 qosuehfvxbh-ify 56 sc 6 uq _ bmjlkuotbpnkx 8 CSS FM 3 RM zolcpyhafhwfz 96j-yrnd 3 l 1 G7 Dao _ Cr _ 7ok 2 i8