Calculating Windmill Efficiency
A gust of wind does 125J of work on the blades of a windmill. Because of this, the windmill can do 46.9J of useful work output. How efficient is the windmill?
Answer:
The efficiency of the windmill is 37.52%.
Explanation:
Given that,
A gust of wind does 125 J of work on the blades of a windmill, Wi = 125 J
The windmill can do 46.9 J of useful work output, Wo = 46.9 J
We need to find the efficiency of the windmill. It is given by the ratio of output work to the input work. So,
η = (Wo / Wi) * 100
η = (46.9 / 125) * 100
η = 37.52%
So, the efficiency of the windmill is 37.52%.
A gust of wind does 125J of work on the blades of a windmill. Because of this the windmill can do 46.9J of useful work output. How efficient is the windmill? The efficiency of the windmill is 37.52%. Explanation: Given that, A gust of wind does 125 J of work on the blades of a windmill, Wi=125 J The windmill can do 46.9 J of useful work output, Wo=46.9 J We need to find the efficiency of the windmill. It is given by the ratio of output work to the input work. So, η=(Wo/Wi)×100 η=(46.9/125)×100 η=37.52% So, the efficiency of the windmill is 37.52%.