If Sw 1 has been closed for 30 minutes, what will the green light show five seconds after the control switch is closed?

When a control switch is closed with Sw 1 having been closed for 30 minutes, the state of the circuit and the associated lights are determined by the characteristics of the device or system in question. In this scenario, if Sw 1 being closed for an extended period has energized the circuit, it indicates that the system has been active and is likely in a stable state.

Five seconds after the control switch is closed, the green light being illuminated signifies that the system is operational and functioning normally. Typically, a green light indicates a "ready" or "on" status, suggesting that the components are receiving power and are functioning as intended. Therefore, the green light showing "ON" aligns with the expected behavior of the system under steady-state conditions after the control switch has been engaged.

In contrast, if the light were to be OFF, flashing, or dim, it would indicate various issues or different states, such as a fault or an inactive condition in the system. However, since Sw 1 has been closed for a sufficient duration, it can be inferred that everything is operational, leading to the conclusion that the green light will indeed be ON five seconds after the control switch is closed.