In terms of current and voltage, what remains the same across all components in a series circuit?

In a series circuit, the key characteristic is that the current that flows through each component is the same. This is due to the design of a series circuit, where there is only one path for the electric current to flow. As a result, all components in the series share the same current value regardless of their resistance.

However, while the current remains constant, the voltage across each component can vary depending on the resistance of those components, in accordance with Ohm's Law (V = IR). The total voltage supplied by the power source is distributed among the components, meaning that while the overall voltage can change, it is not constant in individual components.

In summary, in a series circuit, the current flowing through all components is consistently the same, which is why that characteristic is emphasized as a fundamental principle of series configurations.