In a series circuit, which property remains constant across all components?

In a series circuit, the property that remains constant across all components is the current. This is a fundamental characteristic of series circuits, where the same amount of electrical charge flows through each component in the circuit one after the other. Since there is only one pathway for the current to flow, it does not divide or change as it passes through each component.

The current is determined by the total voltage supplied by the power source and the total resistance in the circuit according to Ohm’s law (I = V/R). If additional resistors are added in series, the total resistance increases, which could cause the overall current to decrease if the voltage remains constant, but the actual current flowing through each individual component remains the same at any given moment.

The other properties mentioned, such as voltage and resistance, will vary across the components in a series circuit. Each component may have a different voltage drop based on its resistance, according to Ohm’s law again. Power, calculated as the product of voltage and current, will also vary depending on the resistance values of each component.