Question

two bulbs having rating 100W,220V and 60W,220V WHICH ONE HAS GREATER RESISTANCE

Answer 1

We know that power = voltage^2 ÷resistance

Therfore r1 = 220^2÷100= 484ohm

And r2 =220^2÷60=806.7ohm .so 2nd one s greater resistance.

Hope it helps