What is the key difference in the flow of charge between a Direct Current (DC) supply and an Alternating Current (AC) supply?, AC continuously changed direction, while DC flows in one direction, AC flows at a higher voltage than DC, AC flows in one direction while DC changes direction, In the UK what potential difference is our mains electricity supplied at?, 400V, 240V, 24V, 240Hz, what is the frequency of the alternating current that UK mains electricity is supplied at?, 25Hz, 50Hz, 25V, 50V, Which of the following provides as source of direct current?, a wind turbine generator, a step-down transformer, a battery, The frequency of alternating current is defined as..., the total voltage of the supply divided by the resistance, the number of times the current changes direction per second, the potential difference supplied at household plug sockets.

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