A series circuit is a type of electrical circuit where components are connected end-to-end in a single path. This means that the electric current flows through each component one after the other. If one component, like a light bulb, fails or is removed, the entire circuit stops working because the path for the current is broken. In a series circuit, the total voltage is divided among the components. For example, if a battery provides 9 volts and there are three resistors, each resistor will receive a portion of the voltage. This setup can be useful for certain applications, but it also means that the failure of one part affects the whole circuit.