Question

An electric bulb of 40 walt is connected to a source of 220 V .
a) How much current will be drawn by the bulb?
b) What is the resistances of the bulb? ​

Answer 1

Explanation:

P=VI

I=P/V

I=40/220

I=0.18

V/I=R

220/0.18=122.22ohm