A fan that is switched on for 1 minute uses 500 W usefully but also wastes 300 W through the emission of sound and heat. What's

Question

3 years ago

12

the efficiency of the fan?

1 answer:

koban [17] · Answer 1 · 2022-05-30T14:12:55+03:00

koban [17]3 years ago

6 0

Explanation:

Efficiency is defined as the ratio between the useful output over the total amount consumed. $E = \frac{useful}{total}$

The fan does 500W of useful work while wasting 300 W. The total power consumption is 800 W (500 + 300).