Question

an electric bulb is rated 220 volt and 101 when it is operated on 110v the power consumed will be​

Answer 1

hello mate .____

here is your answer

An electric bulb is rated 220V and 100W. when it is operated on 110V, what will be the power consumed? R = 2202/100 Ω = 484 Ω. ... When V = 110 V, power consumed = V2/R = 1102 /484 = 25 W.

Answer 2

Hey mate,

P=Vsquare/R

If V = 220 V we have 100 W = 220square/ R R = 220square / 100 Ω.

This is the resistance of the bulb.

When V = 110 V , power consumed = Vsquare/R = 110square/484 = 25 W.

Hope it helps!