A battery stores a charge of 25 000 C25\,000\text{ C}25000 C when fully charged. The battery is charged with a constant current of 850 mA.
How long does it take to fully charge a completely discharged battery?
about 45 minutes
about 5 hours
about 8 hours
about 12 hours
145 exam-style questions on CIE IGCSE Physics 4.2.1a Positive and negative charge. Each one has a worked solution and a mark scheme showing where the marks go.