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How much energy does a 100-W light bulb use in 8.0 hours?
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How much energy does a 100-W light bulb use in 8.0 hours?

User Zorza
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1 Answer

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Energy is referred to heat here

  • Power=P=100W
  • Time=t=8h

Energy be H


\\ \sf\Rrightarrow H=Pt


\\ \sf\Rrightarrow H=100(8)


\\ \sf\Rrightarrow H=800J

User MarkyRoden
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