Question

An electric bulb is rated 220 volt and hundred watt when it is operated on 110 volt the power consumed will be

Answer 1

Ans: In case 1
P= VI
100 = 220 × I
I = 0.4545 Ampere

In case 2
P= VI
P = 110 x 0.4545
P = 50 watt

Hope it helps...!!