Chapter 7 Work, Energy, and Simple Machines - Part 4

What is efficiency of a machine?

Type: MCQ • Marks: 1
What is efficiency of a machine?
Options
A. Work output divided by work input times 100
B. Work input divided by work output times 100
C. Load divided by effort
D. Power divided by force
Explanation
Efficiency = (Work output / Work input) × 100%.
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Class 9th Science (MCQ)

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