Question

you are given three resistance of 1ohm, 2ohm,3ohm how with the help pf these resistance you can get 6ohm,6/11ohm,1.5ohm

Answer 1

1) to get 6 ohm
       We  connect the three resistors in series.  so resistances are added to get the effective resistance:  1 + 2 + 3 = 6 Ω

2)  to get  6/11 Ω
       We connect all the resistances in parallel.  The effective resistance be R.
             1/R = 1/1 + 1/2 + 1/3 = 11/6
                 R = 6/11 Ω

3)  to get  1.5 Ω 
       We connect  1 Ω and 2 Ω in series.  Hence, resistance of the two will be 3 Ω.  Then connect the  3 Ω resistance in  parallel with the series connection of 1 Ω and 2 Ω.
               so effective resistance  =  R
                   1/R =  1/(1+2)  + 1/3 = 2/3
                   R = 3/2 Ω = 1.5 Ω

Answer 2

Answer:

Firstly connected in series all resistance then we get 6 ohms... then we connect all resistance in parallel then we get 6/11...then last resistance 1and 2 ohms connect in series then we get 3ohms and 3ohms and 3 ohms connect in parallel then we get 1.5ohms