What is the functional purpose of the resistor 'RL" placed in parallel to the output of a DC power supply as shown in section "D" of the regulated DC power supply? EL-0085

Correct Answer: Option A — aids in output voltage regulation

Placing a load resistor across the output of a DC power supply ensures a minimum constant current draw, significantly stabilizing voltage regulation under varying load conditions. This design practice is standard in marine electronic power supplies to prevent excessive voltage swings.