Question

in what type of combination of 6 ohms resistors can get 9 ohms and 4 ohms resistors

Answer 1

I took 3 resistors of 6 ohm each For 9 ohm Connect two in parallel connection and one in series        ^^^^^ ----.          ------ ^^^^^^        ^^^^^ So R parallel = 1/R = 1/6+1/6 = 1/3 Therefore, Rp= 3 ohm Reff = 3+6 =9 ohm  For 4 ohm Connect two in series and both together in parallel        ---^^^^---^^^^--- ----                          ------       --------^^^^^------  Rseries= 6+6= 12 ohm Rp= 1/12+1/6 = 3/12 =1/4 Therefore, Reff= 4 ohm...