#4.2.5a
the equations \(P = VI \), \(P = I^2R \) and \(P = \dfrac{V^2}{R} \)
#4.2.5b
energy transfer; \(W = VIt \)
#4.2.5c
the kilowatt-hour (kW h) as a unit of energy; calculating the cost of energy. Learners will be expected to link this with 3.3.3c