Question

What does the equation n =Pout/Pin mean

Answer 1

n= energy efficiency pout means output and pin means input the reason this would show efficiency is because your output should be greater then your input and because depending on how small your number is after your division will tell you how efficient it is you want a big number.

Answer 2

Basically, the variable n is equal to the amount of P out of the system divided by the about of P into the system