An offshore wind farm generates 44 MW44\text{ MW}44 MW of electrical power. This power is transmitted to the mainland grid through an undersea cable with a total resistance of 5.0 Ω.
Which row in the table correctly identifies the power lost as heat in the cable when transmitted at the generation voltage of 11 kV11\text{ kV}11 kV compared to when stepped up to a transmission voltage of 220 kV220\text{ kV}220 kV?
| Power loss at 11 kV11\text{ kV}11 kV | Power loss at 220 kV220\text{ kV}220 kV | |
|---|---|---|
| A | 24.2 MW24.2\text{ MW}24.2 MW | 9680 MW9680\text{ MW}9680 MW |
| B | 80 MW80\text{ MW}80 MW | 4.0 MW4.0\text{ MW}4.0 MW |
| C | 80 MW80\text{ MW}80 MW | 200 kW |
| D | 20 kW | 1.0 kW |
Power loss at 11 kV11\text{ kV}11 kV is 24.2 MW24.2\text{ MW}24.2 MW, and power loss at 220 kV220\text{ kV}220 kV is 9680 MW9680\text{ MW}9680 MW
Power loss at 11 kV11\text{ kV}11 kV is 80 MW80\text{ MW}80 MW, and power loss at 220 kV220\text{ kV}220 kV is 4.0 MW4.0\text{ MW}4.0 MW
Power loss at 11 kV11\text{ kV}11 kV is 80 MW80\text{ MW}80 MW, and power loss at 220 kV220\text{ kV}220 kV is 200 kW200\text{ kW}200 kW
Power loss at 11 kV11\text{ kV}11 kV is 20 kW20\text{ kW}20 kW, and power loss at 220 kV220\text{ kV}220 kV is 1.0 kW1.0\text{ kW}1.0 kW