Answer:
we will get 340 W of output power when there is an input energy of 400 W with 85% efficient generator
Explanation:
As we know that efficiency of the generator is given as 85 %
so we can define efficiency of the generator as
[tex]efficiency = \frac{work \: output}{input\: energy} \times [/tex] 100
so here we know that efficiency is 85 %
so it shows that it will given us 85% of output work when we give it some energy or input
So we will have
[tex]85 = \frac{W}{400}\times 100[/tex]
[tex]W = \frac{85 \times 400}{100}[/tex]
[tex]W = 340 W[/tex]
So we will get 340 W of output power when there is an input energy of 400 W with 85% efficient generator