Yes but doing so makes the car unsafe as it will then crank in gear.
The Neutral is used to bring power back to the source to complete circuit
yes
To complete the circuit. The word neutral is a convention it does not mean it has no purpose
to complete the circuit and back to power supply
The neutral in a receptacle is the return conductor to complete the circuit back to the distribution panel. When a device is plugged into the receptacle this completes the circuit and allows the current to flow and the device to operate.
In North America the neutral pin is used to complete the circuit. One pin is "hot", one pin is neutral and the last pin is ground.
to complete the circuit and back to power supply
What needs to be complete is the circuit from the battery to the bulb, then the other wire from the bulb to the other side of the battery.If it is from an outlet rather than a battery, the circuit starts and finishes with the live and neutral pins at the outlet.
Two wires are always needed to supply electrical equipment so that the current has a complete circuit to flow in. One of the wires is earthed at the supply transformer, that one is called the neutral, and the other one is the live.
If they are on the same circuit you only need 1 neutral wire in the circuit.
Because the neutral is simply the return path in a complete circuit. It doesn't carry any power - that's only found in the live wire.
Neutral wires are actually ground wires. They enable the circuit to be completed.