What happens to current in a series circuit if more resistors are added?

In a series circuit, when additional resistors are added, the total resistance of the circuit increases. According to Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R), an increase in total resistance for a given voltage leads to a decrease in current. Specifically, as more resistors are added in series, the cumulative resistance increases, thereby reducing the overall current flowing through the circuit.

This inverse relationship highlights the essential principle that in a series circuit, current is constant throughout; however, with each added resistor, the higher resistance leads to lower current values. As such, the correct answer directly reflects this foundational concept of electrical circuits, confirming that the current decreases as more resistors are introduced.