Electric propulsion has long been believed to be a key technology for the future of space exploration. The advantages in consumption and continuous improvements in performance have made it a worthy alternative to chemical propulsion. In particular, the use of EP systems on new generation geostationary telecommunications satellites leads to substantial savings in the propellant mass. The electric propulsion is not based on the reactive nature of the propellants to obtain the energization of the flow, but it provides the acceleration by means of electrical systems of various nature. One of the most promising methods is based on the Hall current.