A residential solar panel array has a power rating of 3.6 kW3.6\text{ kW}3.6 kW. Calculate the electrical energy generated, in kWhkWhkWh, if the solar array operates at this power for 4.5 hours4.5\text{ hours}4.5 hours.
Energy generated = ............................................................ kWh\text{kWh}kWh
A domestic battery storage system operates with a terminal voltage of 48.0 V48.0\text{ V}48.0 V. During a charging cycle, a current of 32.5 A32.5\text{ A}32.5 A flows into the system. Calculate the power rating of this charging process.
Power = ............................................................ W\text{W}W
39 exam-style questions on OCR GCSE Physics Powering Earth. Each one has a worked solution and a mark scheme showing where the marks go.