A portable beacon is powered by a rechargeable battery. When fully charged, the battery can supply a total charge of 9000 C. The beacon is used in two modes.
| Mode | Current in A\mathrm{A}A | Time |
|---|---|---|
| Bright | 0.80 | 30 min |
| Low-power | 0.15 | 15 h |
The beacon starts with a fully charged battery and is used in each mode for the time shown. Determine whether the battery can supply enough charge for this use. Justify your answer with a calculation.
94 exam-style questions on Edexcel GCSE Physics 10.1 Circuits, charge and current, covering 10.1.1 Structure of the atom, 10.1.2 Circuit diagrams and symbols, 10.1.3 Series and parallel circuits, 10.1.4 Potential difference and voltmeters, 10.1.5 Energy transferred, charge and potential difference, and 10.1.6 Current, ammeters and charge flow. Each one has a worked solution and a mark scheme showing where the marks go.