What phenomenon is observed when the voltage drop across resistors in a series circuit is equal to the total source voltage?

The phenomenon observed when the voltage drop across resistors in a series circuit is equal to the total source voltage is described by Kirchhoff's voltage law. This principle states that the sum of the electrical potential differences (voltages) around any closed network is zero. In simpler terms, when a series circuit has multiple resistors, the total voltage supplied by the source is divided among the resistors, and the sum of these individual voltage drops will always equal the total source voltage.

This law is foundational in electrical engineering and circuit analysis, as it applies to any closed loop in a circuit, ensuring the conservation of energy. Therefore, when analyzing a series circuit, one can use this law to calculate unknown voltages across the individual resistors. Understanding this concept is crucial for effective troubleshooting and design in biomedical equipment, where precise voltage measurements can impact device functionality and safety.