In a series circuit, the current is:

In a series circuit, the defining characteristic is that the same current flows through every component connected in the circuit. This occurs because there is only a single path for the electron flow; therefore, there is no divergence of current. As a result, the amount of current remains constant throughout the entire circuit, regardless of the number of components. This constant current can be affected by the total resistance in the circuit, which will influence how much current flows overall; however, at any given point within the circuit, the current will not vary. Understanding this fundamental property of series circuits is crucial for analyzing circuit behavior and calculating parameters using Ohm's law and other electrical principles.