There is no such thing as the "purity of electrons". A heat sink is used to keep a device reasonably cold.
An electrical circuit is a path which electrons from a voltage or current source flow. Electric current flows in a closed path called an electric circuit. The point where those electrons enter an electrical circuit is called the "source" of electrons. The point where the electrons leave an electrical circuit is called the "return" or "earth ground". The exit point is called the "return" because electrons always end up at the source when they complete the path of an electrical circuit. The part of an electrical circuit that is between the electrons' starting point and the point where they return to the source is called an electrical circuit's "load".Contents[hide] 1 Electrical-circuits2 Electronic circuits3 Circuit-and-wiring-diagrams4 Circuit-breakers5 Ground-fault-interrupt-(GFI)-devices6 Other websites
The definition of a switch is a device that closes and opens an electrical circuit.
yes
how does input device work
An electrical annunciator is a device that signals when an electrical circuit is being used.
A fuse or circuit breaker will fit this description.
A switch is a device that is used to open and close an electrical circuit that is is connected into.
A series circuit is one in which the current must pass through all the electrical devices in the circuit in turn. A parallel circuit is one in which the current passes through each electrical device on the circuit following separate, independent path from all other devices on the circuit, one for each electrical device.
Gang operating device
load
The load.
A switch.