The bulb converts energy from the power source into light and heat. It is the load in the circuit.
Light
A parallel circuit lights up even when one bulb is out.
it would be ok in a circuit which didn't need a light bulb.
It has components that are arranged end to end in order to produce light.
There must be a current through the bulb in order for it to glow.
Parallel circuit
The bulb is the load of the circuit, without it you have a short circuit.
It opens and closes a circuit and it makes the bulb turn off and on and it completes a circuit when it is closed.
The job of the bulb in a circuit is to convert electrical energy to light. It's called the load in the circuit.
The job of a battery is to power the torch. if the circuit is not complete then the bulb wont light up and if the batteries arent the right way round the bulb wont light up either.
A light bulb can be part of a circuit.
A parallel circuit will not effect the other bulb. If the bulbs are in a series circuit the other bulb will not turn on.
If the bulb's filament is broken, the whole circuit becomes open. If the bulb is in a series circuit or is the only bulb, the electricity would no longer flow. If the bulb is in a parallel circuit, along with other bulbs, then only the blown bulb would go out, and the other bulbs would still work.
When a bulb fuses the circuit is broken if it is on a serial circuit. If the bulb is on a parallel circuit, only the fused bulb will go out, any other bulb would remain lit. On a serial circuit, until the bulb is replaced by a new one, the circuit is not able to be used.
It completes the circuit!!
It doesn't matter where the bulb is in respect to the battery, as long as the circuit is complete, the bulb will light up.
The whole circuit fails - because the action of the bulb blowing cuts the circuit.
The circuit will have the flow of electricity interrupted.