This project will require a parallel circuit, not a series circuit.
The term is "circuit" (from the same root as circle) An electric circuit must be uninterrupted for the current to flow. (This is why circuit-breakers are also called circuit-interruptors.)
A closed path through which a current can flow is called a circuit. Electric Circuit:)
A circuit breaker/fuse is designed to protect the wiring from getting overloaded.
The drawing of an electrical circuit is called a circuit diagram, or schematic diagram. It is a graphical representation of the electrical components and their interconnections in a circuit. It uses standardized symbols to represent different components such as resistors, capacitors, transistors, switches, and wires. The lines connecting the symbols in the diagram indicate the flow of electrical current through the circuit. Circuit diagrams are used to design, troubleshoot, and repair electrical systems, and can be found in technical manuals, books and online resources.
one
a schematic circuit is a diagram that show you how a particular circuit works
That really depends on how the circuit is designed.
As many as you like but the total current taken is limited by the circuit breakers.
2
An ammeter measured how many amperes of current are flowing in an electrical circuit.
12
Up to 12 on a 20 amp circuit. Up to 9 on a 15 amp circuit. But use common sense. If the circuit will be heavily loaded, as in a home office, then do not install that many.
You can plug in as many as you want but none of them will work. An "open" circuit is an electrical circuit which is not a complete circuit and therefore electricity will not flow through it. If you mean an unused circuit,which has no load on it, then the answer is 2 ea. 5 amp devices on a 15 amp circuit and 3 ea. 5 amp devices on a 20 amp circuit. The reason for this is that any circuit is not to be "loaded" more than 80% of the OCPD (circuit breaker amperage rating.
It depends on the capacity of the circuit. A typical residential circuit in the US is rated for 15 or 20 amps.
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There are 31 judicial circuits with a total of 120 separate circuit courts.