Physics, asked by saisatvik6492, 1 year ago

An electric bulb is marked 100w 23 0v.If the supply voltage drops to 115v what is the energy dissipated by the bulb in 20 mins

Answers

Answered by rishi7586

1

R = 230*230/100=23*23
Now E = 115*115/(23*23)*20*60=5*5*1200=30000 j

rishi7586: please brainlist

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