Question

There are n identical light bulbs, each designed to draw power P from main supply. These all are joined in series across the main. what is the total power drawn by this combination

Answer 1

There is a formula which tells the total power consumed by n appliances connected in series. The derivation could be done by you. Thus according to it, the answer should be P/n.

Note: V(app) is the applied voltage and V(s) is the specific voltage of the appliance. I assuming here that they both are same.