Question

A bulb of rating 100 w ; 220 V is connected to a domestic electric circuit . What will be the current flowing through the bulb ​

Answer 1

Given that - P = 100 w

V = 220 V

I = ?

as per by formula ,

P = V X I

100 = 220 x I

I = 100 / 220

I = 10 / 22

I = 0.45 A