dylan8478 dylan8478
  • 20-07-2022
  • Physics
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A transformer usefully transfers 190,000 W of the 200,000 W of energy supplied to it. How efficient is the transformer?

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z7m9ug9xfq z7m9ug9xfq
  • 20-07-2022
Energy efficiency = useful energy output/ total energy input
Therefore (190000/200000) x 100 (to work out percentage) = 95%
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