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An electric bulb marked 100 w 230 v if the supply voltage drop to 115 what is the heat and light energy produced by the bulb in 2 min |
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Answer» p=100w ,pd=230v,t=2min=2*60=120 p=vi 100=230i I=10/23 now h=vit h=230*120*10/23=1200 therefore heat=1200joules i hope this is your correct answer thanks U |
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