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An electric bulb is rated 220V and 100W. When it is operated on 110V, the power consumed will be: |
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Answer» 100W `THEREFORE` Resistance of bulb filament `R=V^2/P=(220 times 220)/100=484 Omega` When the bulb is operated at a voltage V.=110 V, the POWER consumed is `P=V^2/R=(110 times 110)/484=25W.]` |
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