Science and Technology · Applied Physics and Advanced Materials

With reference to the end-use applications of Rare Earth Permanent Magnets (REPMs), consider the following: I. Electric traction motors used in Electric Vehicles II. Generator systems used in wind energy installations III. Certain aerospace and defence applications involving guidance, control and actuation IV. Precision sensors, servo systems and related high-performance actuators V. Photovoltaic cells as the primary medium for solar energy conversion How many of the above are correctly identified as major applications of Rare Earth Permanent Magnets?