The word 'circuit' is not a Biblical word, so you will need to define what you mean by circuit.
a circuit assembly is a gathering of different groups of jehovahs witnesses.
A completed electrical circuit provides a current path for electron flow. Circuits that are complete (have completed electrical connections) will "power up" and do what they are supposed to do when energized. An on/off switch completes or breaks an electrical circuit allowing it to be energized or de-energized.
Shouldn't it light?
If there is an Assembly Hall of Jehovah's Witnesses (This is different from a Kingdom Hall) in Raleigh NC; -- there would have been a circuit level assembly held there every weekend of the year.
Basically, when you click that switch, it completes a circuit for the electricity to flow. If the circuit is not completed in any part, the circuit will not work at all
Jehovah's Witnesses do not maintain a public list of people who got baptized at a specific assembly.
Yes, an electric circuit can be completed without connecting it to earth. The circuit needs a complete path for the current to flow back to the source, so as long as the circuit is properly connected and the electrons can flow through the components, it will work without needing an earth connection.
When the electrical circuit is completed - usually by closing a switch.
the switch in a torch allows the circuit in the torch to be completed
Neutral wires are actually ground wires. They enable the circuit to be completed.
No, electrons continue to move in an incomplete circuit but they will not flow consistently as with a completed circuit. This can lead to a build-up of charge and potential difference in certain parts of the circuit.
There is a 'lookup' facility at one of the official Watchtower sites, (jw . org)