power, P (W) = current^2, I^2 (A) x resistance, R ( )
Back
Card 17
Front
charge flow, Q (coulombs, C) = current, I (amps, A) x time, t (seconds, s)
Back
Card 18
Front
energy, E = charge flow, Q x potential difference, V
Back
Card 19
Front
When charge flows around a circuit for a given time, the energy supplied by the battery is equal to the enrgy transferred to all the components in the circuit.
Back
Card 20
Front
energy transferred from the mains, E (joules, J) = power, P (watts, W) x time, t (seconds, s)
