Power Flashcards
1
Q
Power Equation
A
Power (Watts) = Energy transfer (J) / Time (S) (PE/T)
2
Q
What do power ratings do?
A
Tell you the maximum amount of energy transferred between stores per second
3
Q
Why are power rating useful?
A
Because it helps customers to choose appliances that are cheaper to run
4
Q
Why doesn’t higher watts mean more efficient all the time?
A
Because energy can be dissipated into surroundings or not used in right energy stores
5
Q
Power, current and voltage
A
Power (W) = Current (A) X Voltage (V)
