Two resistances when connected in series give a total resistance of `18Omega` and when connected in parallel gives a total resistance of `4Omega`. Find the value of each resistance.

Two resistances when connected in series give a resistance of 9Q and when connected in parallel gives a resistance of 2Omega .Calculate the.value of each resistance.

The total resistance of two resistors, when connected in series is 9Omega and when connected in parallel, their total resistance ecomes 2Omega . Find the value of each resistance.

Two resistors are in the ratio 1:4. If these are connected in parallel, their total resistance becomes 20Omega . Find the value of each resistance.

Two resistances are inthe ratio of 1:4.If these are connected in parallel, their total resistance becomes 16 Omega . Find the value of each resistance.

A set of n identical resistors, each of resistance R Omega, when connected in series have an effective resistance X Omega and when the resistors are connected in parallel, their effective resistance is Y Omega. Find the relation between R, X and Y.