By definition an electrical circuit is a route or path that starts and finishes at the same place. So there is no part of an electrical circuit that is not necessary, because if there were it would not be an electrical circuit.
An electrical circuit needs a power source. Conductors to transmit the voltage from the power source to the load. The final component of the electrical circuit is the load that you want to energize.
If you remove any of the components there will be an open circuit and the load will be impossible to operate.
Current can't pass through an open circuit .
No, the ground wire is there for safety reasons and only carries current in fault conditions.
Outlets are part of a "branch" circuit.
That is called electrical current.
A continuous unbroken path of electrons is a closed circuit. If there is an opening, then it is an open circuit.
It is a safety device. It is not an essential part of the circuit.
Current can't pass through an open circuit .
It has components that are arranged end to end in order to produce light.
When an electric cell is a part of a complete electric circuit, the chemical energy of its chemical is converted in to electrical energy.
-- power supply -- power-dissipating component -- connecting conductors
Current can't pass through an open circuit .
An incomplete circuit is an open circuit; i.e. some part of the circuit isn't connected to anything.Or think of it like this: A circuit is complete when there exists a complete (or closed loop) path for the electrons to flow through it. Also known as a closed circuit. If this is not the case, then it is an incomplete (or open) circuit.
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.
the complete and total absence of any point in the circuit where the current has any choice of which way to go ... no 'forks in the road'
Since you haven't given us the list of options.... we cannot help you !
No, the ground wire is there for safety reasons and only carries current in fault conditions.
If you ground the flow of current like the last part of your question states you will not have a complete circuit as the circuit will open on a short circuit. To make a complete circuit operate you need a power source, an overload device to protect the conductors of the circuit, conductors to carry the current and a load across the power source which causes the current to flow in the circuit. Leave any one of these things out and you will not have a complete circuit.