i believe you mean lamps a bulb is what you plant in the ground.
a closed circuit
no
A closed switch completes the electrical circuit, allowing current to flow through the light bulb and generate light. If the switch is not closed, there is an open circuit, meaning the current cannot flow and the light bulb does not turn on.
It is a closed circuit if there is a load in the circuit (light bulb etc), otherwise it is a short circuit (+ to - on a car battery with a screwdriver)
The light bulb in the circuit turns on due to the flow of electric current, which is facilitated by a closed circuit. When the switch is closed, it completes the circuit, allowing electrons to move from the power source through the bulb, causing it to emit light. The resistance in the bulb converts electrical energy into light and heat, resulting in illumination.
When the switch is closed, it completes the electrical circuit, allowing current to flow from the power source to the bulb. This flow of current energizes the filament or LED inside the bulb, causing it to emit light. The closed circuit enables the necessary voltage and current to reach the bulb, resulting in illumination.
A bulb does not light up if there is no voltage available across the bulb, or if the bulb is burned out.
The bulb glows continuously probably, because the circuit it is installed in, is in the closed position.
There must be a current through the bulb in order for it to glow.
open
In a series circuit, if you open a bulb, current loop will be broken. So, current cannot travel all the wayback, hence no output. But in a parallel circuit, current will be only shared with parallel circuit, but the loop remains closed even if you remove the bulb. So, no change occurs.
It will not work because it has to be closed so the electricity can go to the bulb.