An offshore wave-energy converter transmits electrical energy to a coastal research platform at a potential difference of 16,000 V16,000\text{ V}16,000 V.
The energy transferred by the converter in one second is 920,000 J920,000\text{ J}920,000 J.
Calculate the charge flow from the wave-energy converter in one second. Use the equation: charge flow=energypotential difference\text{charge flow} = \frac{\text{energy}}{\text{potential difference}}charge flow=potential differenceenergy
The electricity supply is stepped down to 400 V400\text{ V}400 V for use in the platform's analysis laboratory. The table below shows the electric current in three instruments when they are fully operational:
| Instrument | Current (A) |
|---|---|
| Telemetry transceiver | 4.25 |
| High-pressure pump | 8.50 |
| Ventilation fan | 3.25 |
Calculate the total power of all three instruments when running at the same time. Use the equation: power=potential difference×current\text{power} = \text{potential difference} \times \text{current}power=potential difference×current