In the given circuit, what will be the equivalent resistance between the points A and B ?

This is a case of balanced Wheatstone bridge becausePQ=RS  or  23=46Therefore, no current will flow through 10 Ω resistance .now, the equivalent resistance can be calculated by using figHere, RACB=(2+3)=5Ωand RADB=(4+6)=10ΩNow,RACB and RABB are in parallel∴ 1Rresultant =15+110=2+110=310or RT=(10/3)Ω