a parallel bulb is one that is connected in parallel with respect to the source voltage
In parallel
In a parallel circuit, the other bulb still works when one fails.
Total resistance decreases.
When light bulbs are connected in parallel, each bulb has its own separate path to the power source. This means that if one bulb burns out, the others will continue to work. Additionally, the voltage across each bulb in a parallel circuit remains the same.
Parallel circuit
In parallel, each bulb will have full voltage applied across them. However, in series, the voltage across each bulb won't be the same as supply voltage. Thereby, bulbs connected in parallel will glow brighter.
Nothing. That's why it's a parallel circuit. If it was a series circuit, then the first bulb would go out.
That bulb goes out. The other bulbs remain on.
In a parallel circuit each bulb has the same voltage applied so if one bulbfails all the others will remain lit.
Remove a light bulb. If they all go out, it is series, if the all stay on, it is parallel.
A parallel circuit will not effect the other bulb. If the bulbs are in a series circuit the other bulb will not turn on.
A parallel circuit lights up even when one bulb is out.