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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?

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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2 votes
A transformer usefully transfers 190,000 W of the 200,000 W of energy supplied to it. How efficient is the transformer?

User Artch
by
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1 Answer

7 votes
Energy efficiency = useful energy output/ total energy input
Therefore (190000/200000) x 100 (to work out percentage) = 95%
User Rex Lam
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8.6k points
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