Two indentical resistors are connected in parallel then connected in series. The effective resistance are in the ratio

When three resistors are connected in parallel then the value of the effective resistance is __________

When three resistors are connected in series then the value of the effective resistance is

An effective resistance R is obtained by connecting 'n' identical resistors each resistance 'r' in series.When connected in parallel,the effective resistance of the combination is

The equivalent resistance of n identical resistors connected in parallel si x . If the resistors are connected in series, the equivalent resistance would be.

A set of 'n' identical resistors, each of resistance 'R' when connected in series have an effective resistance 'X'. When they are connected in parallel, their effective becomes 'Y'. Find out the product of X and Y.

when resistors are connected in series, the effective resistance is increases. Why ?

When resistors are connected in parallel the effective resistance is reduced. Why ?