Of course. Aluminum is not the best, but it IS used for electrical wire.
Copper and aluminum (or copper clad with aluminum) are often used in wiring. New aluminum connection is now limited to use service-connections by some electrical codes and can no longer be installed for branch circuit wiring.
A switch is a device that is used to open and close an electrical circuit that is is connected into.
No, an electrical approved switch is used to break an electrical circuit.
Quite often, the word "circuit" is used for an electrical circuit. In that case, the energy is electrical energy.
Quite often, the word "circuit" is used for an electrical circuit. In that case, the energy is electrical energy.
An electrical annunciator is a device that signals when an electrical circuit is being used.
To open and close the circuit.
A light switch
An electrical breaker is a safety device used to open a circuit that has an electrical fault on it.
Metal
Copper, Brass and Aluminum.
I don’t know