An offshore wind farm in the North Sea transmits electrical energy to the mainland grid via a High Voltage Direct Current (HVDC) link.
During a period of high winds, the wind farm transfers 5.85×1012 J5.85 \times 10^{12}\text{ J}5.85×1012 J of electrical energy.
The operating potential difference of the HVDC transmission line is 450 kV450\text{ kV}450 kV.
Calculate the total charge flow through the transmission line during this period.
Give your answer in standard form to 3 significant figures.
39 exam-style questions on AQA GCSE Physics 2.1 Current, potential difference and resistance, covering 2.1.1 Standard circuit diagram symbols, 2.1.2 Electrical charge and current, 2.1.3 Current, resistance and potential difference, and 2.1.4 Resistors. Each one has a worked solution and a mark scheme showing where the marks go.