In which type of circuit does current remain the same for each component while voltage adds up?

A series circuit is defined by its unique configuration where all components are connected one after the other in a single path for the current to flow. In this arrangement, the same amount of current passes through each component due to the nature of series connections, meaning that the current remains consistent across all parts of the circuit.

Furthermore, in a series circuit, the total voltage across the circuit is the sum of the individual voltages across each component. This results from the fact that the electrical potential (voltage) drops across each component, such as resistors or other devices, while the same current flows through them. Therefore, if you were to measure the voltage across the entire circuit, it would equal the sum of the voltages across each of the components in that series configuration.

This behavior distinguishes series circuits from parallel circuits, where the voltage across each branch remains the same while the current can vary. Understanding this fundamental property helps in analyzing and designing circuits effectively.