P5.5 - Appliances And Efficiency (Maby Finished) Flashcards
1
Q
Why does a moving charge transfer energy?
A
Because the charge does work against the resistance of the circuit
2
Q
How do you calculate energy transferred from the mains to an appliance?
A
Enenrgy transferred (J) = power (W) * time (s)
3
Q
What does the power rating of an appliance tell you?
A
The power rating is the maximum amount of energy transferred between stores per second when an appliance is un use
