A deep-sea exploration vehicle is supplied with electrical energy from a surface ship via a tether at a potential difference of 15,000 V15,000\text{ V}15,000 V.
The energy transferred down the tether in one second is 525,000 J525,000\text{ J}525,000 J.
Calculate the charge flow down the tether in one second. Use the equation:
charge flow=energypotential difference \text{charge flow} = \frac{\text{energy}}{\text{potential difference}} charge flow=potential differenceenergyInside the exploration vehicle, the voltage is stepped down to 120 V120\text{ V}120 V to run the scientific instruments. The table below shows the operating current of three critical sensors:
| Sensor | Current (A) |
|---|---|
| Sonar Array | 4.15 |
| Telemetry Uplink | 1.35 |
| HD Camera System | 2.50 |
Calculate the total power consumed when all three sensor systems are running at the same time. Use the equation:
power=potential difference×current \text{power} = \text{potential difference} \times \text{current} power=potential difference×current