Question

5. How is the efficiency of a machine calculated?
Efficiency = Output work - Input work
Efficiency = Output work / Input work X 100
Efficiency = Output work + Input work
Efficiency = Input work / Output work X 100
Answered by GPT 3.5
Efficiency is typically calculated by dividing the output work of a machine by the input work, and then multiplying by 100 to express it as a percentage. The formula for efficiency is:

Efficiency = (Output work / Input work) X 100
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