What happens to the red light one second after Sw 1 is closed?

In this scenario, if Sw 1 is a switch that either controls or influences the red light's status, then one second after the switch is closed, the light turns off. This indicates that there is a timing or mechanical element in the control circuit associated with the switch.

When a switch is closed, it typically completes a circuit which allows current to flow. However, if there’s an inherent design where the light is initially powered for a brief moment upon closure of the switch but subsequently turns off after a short delay, this would explain why the light would turn off after one second.

Understanding how different components in the circuit interact can clarify this reaction. In many electrical systems, timing circuits or relays can cause components to change states after a set interval. In this situation, one second after the switch is closed, the current flowing could be interrupted or modified in a way that ceases to power the red light, resulting in it turning off.

This also highlights the importance of recognizing if there are capacitors, timers, or load characteristics within the circuit that dictate how long the light remains lit after the switch is activated.