Mains Electricity 0.0 / 5 ? PhysicsElectricityGCSEAQA Created by: SLowtherCreated on: 08-01-17 11:58 What is direct current? (DC) when the current flow in one direction 1 of 5 What is alternating current? (AC) when current constantly changes direction 2 of 5 What current is Mains electricity? Alternating current 3 of 5 What voltage and frequency does mains electricity operate at? 230V and 50Hz 4 of 5 What is the equation for frequency? f=1/T 5 of 5
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