P3.2.8 - Electrical Power Flashcards
1
Q
What is power measure in?
A
Watts (W)
Kilowatts (kW)
Megawatts (MW)
2
Q
What does current tell you?
A
Amount of charge flowing through a component per second
3
Q
What does potential difference tell you?
A
The energy transferred by each charge
4
Q
What is the equation for power?
A
Power(W)
Potential Difference(V) X Current(A)
5
Q
What is the equation for energy transferred?
A
Energy Transferred(J,kWh) = Power(W) X Time(S)
6
Q
What is the equation for power without potential difference?
A
Power = Current^2 x Resistance
