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What is a circuit that lights up even if one bulb is out?
A parallel circuit lights up even when one bulb is out.
Why will the bulb not light up in a short circuit?
That's because the path of the short circuit provides a much lower resistance than the actual path and which the current will choose to flow through the path with a lower resistance rather than the path connected to a bulb,which explains that why the bulb won't light up.
What could you add to the circuit to control the bulb?
Switch
Why does Fluorescent bulb not light and end turns black?
In order to know why fluorescent bulbs turn black at the end, you need to understand how they work. Basically, when you turn on the lighht switch, the ballast sends a spark through the mercury-vapor-filled tube or bulb, depending on design. When it does this, it creates light by activating phosphors that coat the inside of the tube. Well each time the ballast fires, it creates emissions. These emissins materials then settle on the surface inside the glass. After awhile this material piles up. When it does this, the tube end turns completely black. Not only does the tube end turn black, but the accumulated materials pile up so high that it blocks the electrons that flow into the mercury. When this happens, you will notice the bulb or tube flicker heavily and then burn out.
What is filament coil?
it is the coiled wire that heats up and gives off light in a incandescent (ordinary) light bulb.
