What will remain constant in a series circuit?

In a series circuit, the current remains constant throughout the entire circuit. This consistency arises from the nature of a series arrangement, where there is only one path for current to flow. As the same current flows through all components in the circuit, regardless of their resistances, the value of the current remains unchanged.

In contrast, voltage across individual components can vary depending on their resistances and the overall voltage supplied to the circuit. The resistances will also contribute to variations in voltage across the circuit components, but the total resistance of the circuit can change if different components are added or removed.

Power can vary among components as well, being dependent on both the current flowing through and the voltage across each individual component. Thus, while the total power consumed by the circuit depends on the overall parameters, the current itself will always be the same in a series circuit due to its single pathway.