Which of the following configurations would lead to higher power loss in a transmission line?

Power loss in a transmission line primarily occurs due to the resistance in the line and is usually characterized by the equation for power loss, which is P = I²R. In this equation, P represents the power loss, I is the current through the line, and R is the resistance of the line.

When both current and resistance are high, the overall power loss increases significantly because the loss is proportional to the square of the current. Even if the resistance is significant, it is the current value that plays a more crucial role in determining the total power loss. Thus, in the scenario of high current combined with high resistance, the loss will be maximized due to the I² factor.

This concept illustrates why configurations with high current, regardless of the resistance being high, lead to more substantial losses compared to configurations with lower current levels. This principle is fundamental in electrical engineering and reinforces the importance of minimizing current and resistance in transmission lines to ensure efficient power delivery.