Question

an electric bulb is rated 220 volt and 100 watt. when it will be connected to 110 volt line how much power will be consumed ​

Answer 1

Answer:

Hy !! your answer is below..

first find resistance..then put that value of R in formula v square upon r..

220 × 220 ÷ 100 = 484 ohm

given v = 110

V^2 / R

so,

110 × 110 / 484 = 2

so ans is 25 watt

hope it helps u..

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