Question

Show how would you join three resistors, each of resistance 9Ω so that the equivalent resistance of the combination is (i)13.5Ω (ii)6Ω

Answer 1

1) 2 in parallel and 1 in series
2) 2in series and 1 in parallel

Answer 2

i . Two resistors are connected in parallel and one is in series.
ii. vice versa of i.