What happens to voltage in a DC series circuit when more resistors are added?

In a DC series circuit, the total voltage provided by the power source remains the same regardless of the number of resistors added. However, when resistors are added, the total resistance in the circuit increases, which affects how the total voltage is distributed across each resistor according to Ohm’s law (V = IR).

Each resistor in series has a voltage drop across it that is proportional to its resistance. Therefore, while the total voltage supplied by the power source does not change, the way this voltage is divided among the resistors does vary. The total voltage available for the entire circuit remains constant, but the distribution of this voltage can indeed change depending on the resistors' values and how many are added. Thus, it is accurate to say that the total voltage varies based on the resistors in the circuit, indicating a dynamic relationship between resistance and voltage across multiple components.