Using Ohm's Law, calculate the resistance of combination of few resistances joined in series.

Why are resistance connected in series ?

If maximum resistance from the combination of two resistances is 18 ohm and minimum resistance is 4 ohm, find two resistances

The resistance of the series combination of two resistances is S. WHen they are joined in parallel, the tital resistance is P. If S=nP, then the minimum possible value of n is :

A wire has a resistance of 16 ohm it is melted and drawn into a wire of half its length calculate the resistance of new wire what is the percentage change in its resistance

What is the need of combining different resistors? What is the resultant resistance when number of resistances are connected in series?