A remote research station receives 24 kW24\text{ kW}24 kW of electric power from a 240 V240\text{ V}240 V supply.
Calculate the current that the research station draws from the supply,
Calculate the electrical energy supplied to the research station in 45 minutes45\text{ minutes}45 minutes.
The power supply to the research station is from a distant generator connected by long-distance transmission cables. The voltage of the transmission cables is very much larger than 240 V240\text{ V}240 V.
Explain why energy losses in the transmission cables are lower when the voltage is high.
69 exam-style questions on CIE IGCSE Physics 4.2.5 Electrical energy and electrical power. Each one has a worked solution and a mark scheme showing where the marks go.