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)
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.
For a circuit to light a bulb, there must be a closed loop for the flow of electricity. This loop typically consists of a power source (e.g. battery), wires, a switch, and the bulb. When the switch is closed, the circuit is complete and electricity can flow through the wires to the bulb, causing it to light up.
It depend on where the switch is located in the circuit.