What is the result of connecting multiple resistors in series?

When multiple resistors are connected in series, the total resistance of the circuit is simply the sum of the individual resistances. This means that if you have several resistors with known resistance values, you can calculate the total resistance by adding them together.

This behavior occurs because, in a series configuration, each resistor adds to the opposition that the electrical current faces. The current flowing through the circuit remains the same, but the voltage drop across each resistor contributes to a higher total voltage requirement. As a result, if the total resistance increases, it can lead to a decrease in current flow for a given voltage, according to Ohm's law. Thus, when resistors are combined in series, their resistive effects accumulate, leading to a higher total circuit resistance.