6.1.2.2 - Efficiency Flashcards
1
Q
What is the efficiency equation?
A
Efficiency = useful output energy transfer ÷ total input energy transfer
OR
Efficiency = useful power output ÷ total power input
2
Q
What are devices designed to?
A
Devices are designed to waste as little energy as possible, so that as much of the input energy is transferred usefully.
3
Q
What is efficiency?
A
It is the proportion of energy supplied to a device that is transferred into a useful form.
