Question

answer it ............???? ​

Answer 1

(I) in order to get equivalent resistance as 6 ohm

connect two resistors in series and one in parallel

9 ohm and 9 ohm in series

Rs=9+9=18ohm

18 and 9 ohm in parallel

Rp=18×9/18+9=162/27=6 ohm

(II) in order to get equivalent resistance as13.5 ohms

connect two resistors in parallel and one in series

9 ohm and 9 ohm in parallel

Rp=9/2=4.5 ohm

4.5 ohm and 9 ohm in series

Rs=4.5+9=13.5 ohm

I hope this helps