Physics, asked by Shikhuuuu, 10 months ago

An electric bulb is rated 220 volt and 100 watt. Power consumed by it when operated on 110 volt is

Answers

Answered by sonalvagh15
2

Answer:

R=V2/P

= (220)2/100

= 484 Ω

The resistance of the bulb remains constant

if the supply voltage is reduced to 110 V then Vʹ=110 V

the power consumed by it is given by the expression = Vʹ2/R

= (110)2/484 = 25w

Hope this helps you ....!!#

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