What is the purpose of having a resistor placed between the bushing leads in distribution capacitors?

The purpose of having a resistor placed between the bushing leads in distribution capacitors is to discharge stored energy. When capacitors are disconnected from the circuit, they can still hold a significant charge, which poses a risk of electric shock to anyone handling them. By incorporating a resistor, the stored energy can safely dissipate over time when the capacitor is de-energized. This process helps in preventing potential hazards associated with residual voltage, making the equipment safer to work with after maintenance or repairs.

The other options focus on functionalities that do not directly relate to the primary safety concern addressed by the resistor's presence. For instance, increasing voltage output, preventing short circuits, and balancing load do not pertain to the necessity of discharging stored energy from capacitors. Hence, the key role of the resistor is to ensure safe management of stored charge.