What is power? Flashcards
1
Q
What is power?
A
Power is the rate of energy transfer, measured in watts.
2
Q
How are power, current and p.d. linked?
A
Power = Current * P.d.
3
Q
How are power, current and resistace linked?
A
Power = Current ² * Resistance
4
Q
How are joules (work done), charge and voltage linked?
A
Joules (E) = Charge (Q, Coulombs) * Voltage (Volts)
