Efficiency Flashcards
1
Q
Input energy formula?
A
Input energy =useful output energy + energy wasted
2
Q
What is input energy?
A
Input energy = the amount of energy put into a device
3
Q
What is useful output energy?
A
Useful output energy = the amount of energy that comes out
4
Q
Formula of efficiency for devices that can transfer energy?
A
Efficiency = useful energy out of the device (transferred)
——————————————————————— x 100
total input energy that comes into the device (used)
5
Q
Why is it impossible for devices to be 120% efficient?
A
Because you cant get more energy than you put into a device
