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Earn +20 ptsQ: Why is it that is impossible to have a 100 percent efficiency?
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How does the output work compare to the input work for a machine that has an efficiency equal to 100 percent?
If a machine has 100 percent efficiency, the output work = the input work. That's actually basically what the efficiency of a machine is - output work / input work * 100.
What is the formula to calculate percent efficiency?
(work out/work in) x 100
What is the percent efficiency if a man expends 100 J of work and the work produced is 80 J?
100*80/100 = 80%
Can 120 percent be a probabilty?
No. No percentage higher than 100 percent is possible. Out of 100 occurrences it is impossible to obtain an answer of more than the totality of the occurrences.
What is the efficiency is the output work is 12000 and the input work is 15000?
Efficiency as a percent is output/input * 100%12000/15000 * 100% = 80% efficiency which makes sense, because it takes more work (input) than it give out (output). So the efficiency should be less than 100%.
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