What is the effect of using a center tapped bridging reactor with two fingers in a voltage regulator?

Using a center tapped bridging reactor with two fingers in a voltage regulator allows for voltage adjustments without interruption because it enables a smooth transition between different voltage levels. The design of the reactor with its center tap allows for incremental adjustments to be made while the system is still operational, facilitating consistent voltage regulation as load conditions change.

This is particularly useful in environments where maintaining a stable voltage is critical, as it minimizes disturbances that could affect downstream equipment. The ability to adjust the voltage on-the-fly without needing to disrupt the power supply leads to enhanced reliability and efficiency in power delivery systems. Other options such as increasing output voltage or improving overall circuit resistance do not directly relate to the specific function of a center tapped reactor, nor do they reflect the operational benefit provided by its design.