An electrical circuit consists of:
Numerous forms of transport operate using electrical energy. Regardless of the dipole used, an electric motor is connected to the generator (not shown in the photos) by two conducting wires.
The electric power available at the terminals of a dipole is equal to the product of the current (I, in amperes, or "amps") and the voltage (E, for "electromotive force", in volts).
Remark: The colors chosen are not the conventional ones. The voltage and the current could be direct or alternating.
Click each photograph to reveal the electrification system in operation.