This book presents current research in the field of electrical engineering. Topics discussed include voltage stabilisation using a storage capacitor; AC bridge circuitry for the capacitive position sensor inside the superconducting linear motor system; ferromagnetism in semiconductors doped with non-magnetic elements; spin transfer torque effect and its applications; fundamentals of half-metallic full-heusler alloys; electronics, spintronics and orbitronics and electric motor drives for battery, hybrid and fuel cell vehicles.