Réponse :
P(chauffage) = 1200 W et t(chauffage) = 30 min = 0,5 h
E(chauffage) = P(chauffage) x t(chauffage) = 1200 x 0,5 = 600 Wh = 0,6 Wh
P(rinçage) = 200 W et t(rinçage) = 15 min = 0,25 h
E(rinçage) = P(rinçage) x t(rinçage) = 200 x 0,25 = 50 Wh = 0,05 kWh
E(cycle) = E(chauffage) + E(rinçage) = 0,6 + 0,05 = 0,65 kWh
