College

An air conditioner uses 10,543 J of energy to run, but only 5,818 J of energy is used to heat or cool the air of a home. What is its energy efficiency?

Answer :

In order to calculate the efficiency, we need to divide the useful energy by the total energy used:

[tex]e=\frac{P_{useful}}{P_{total}}[/tex]

So, using the given information, we have:

[tex]e=\frac{5818}{10543}=0.5518=55.18\%[/tex]

Therefore the energy efficiency is 55.18%.

Other Questions