An autonomous underwater research drone is powered by a high-capacity battery pack. The battery is recharged by connecting it to a subsea docking station.
The docking station charging voltage is 320 V320\text{ V}320 V.
State the amount of energy transferred when one coulomb of charge passes through a potential difference of 320 V320\text{ V}320 V.
The docking station charging voltage is 320 V320\text{ V}320 V.
Show that, when a charge of 180 000 C180\,000\text{ C}180000 C passes through the battery, the total amount of energy transferred to the battery is about 58 MJ58\text{ MJ}58 MJ.
The docking station charging voltage is 320 V320\text{ V}320 V.
During the docking charge process, energy is also transferred to the subsea station from the surface support ship's generator. Explain why the amount of energy transferred from the generator is more than 58 MJ58\text{ MJ}58 MJ.
Recharging takes 75 minutes75\text{ minutes}75 minutes and causes a total charge of 180 000 C180\,000\text{ C}180000 C to pass through the battery.
State the equation linking charge, current, and time.
Recharging takes 75 minutes75\text{ minutes}75 minutes and causes a total charge of 180 000 C180\,000\text{ C}180000 C to pass through the battery.
Calculate the average charging current in the battery.
