In a series street light circuit, an open would yield a voltage equivalent to what?

In a series street light circuit, if there is an open circuit, it means that there is a break somewhere in the wiring, preventing current from flowing through the circuit. In this situation, all the voltage provided by the power source would appear across the open circuit point.

Since the circuit is a series configuration, the total voltage from the source is divided among the components in the circuit while current flows. However, with an open circuit, there is no current flow, and therefore the voltage drop across other components becomes irrelevant. Consequently, the entire source voltage will appear across the point of interruption, demonstrating that the open circuit has a voltage equivalent to that of the source itself.

Understanding this is crucial for working on electric circuits, as recognizing the behavior of voltage and current in series circuits guides diagnostic procedures and troubleshooting methods.