Efficiency is ?

Physics

2 answers:

elena-14-01-66 [18.8K]4 years ago

6 0

It is b) because you need to use your energy efficient for working

charle [14.2K]4 years ago

5 0

Answer:

B. The percentage of energy that is actually used to perform work.

Explanation:

source: http://www.softschools.com/formulas/physics/efficiency_formula/29/

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