An electronic device uses electric to represent coded information. Variations in the current are converted to codes used by the electronic device.
A fuse is the simplest protective device for over current in an electric circuit.
electric genarator
ammeter
ammeter
a galvanometer
The telephone does that!
ampmeter
The device is known as a "motor".
Geiger Counter
An ammeter is a measuring instrument used to measure the electric current in a circuit.
Electric discharge
A device that disconnects a circuit when ever it detects the electric current is lower than the rated current.