Shouldn't it light?
The bulb will get brighter
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.
When one wire or terminal is not connected to a light bulb, it is not possible for electricity to complete the circuit. When a circuit is not completed, the bulb will not light. An off switch, for example, breaks the circuit.
The whole circuit fails - because the action of the bulb blowing cuts the circuit.
The glass of the light bulb is not conductive, so the circuit would not be completed. You would need to join the wires to the positive and negative contacts on the base of the bulb for the circuit to work.
Nothing. That's why it's a parallel circuit. If it was a series circuit, then the first bulb would go out.
If one light bulb in a series circuit fails, all the other light bulbs will go out, until the failed bulb is replaced and the series circuit is completed again.If one light bulb in a parallel circuit fails, all the other light bulbs will still work.
it should become dimmer
The resistance is increased, the voltage across each bulb is decreased and the current through the circuit is reduced.
it trens off
In a series circuit, all bulbs are necessary to complete the circuit. If one bulb goes out, the circuit is broken, so none of the bulbs would light up.
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.