Electrical engineering Electronics 124 Engineering 61 Safety measures 56 Electric apparatus and appliances 42 Electric circuits 42 Mathematics 39 Electricity 36 Standards 33 Electric power systems 24 Computer science 22 Electric wiring 22 Study and teaching 22 Materials 20 Examinations, questions, etc 19 Computer engineering 18 Problems, exercises, etc 18 Insurance requirements 17 Computer communication systems 16 Direct current 16 Electric machinery 16 Mechanical engineering 15 Electronic circuits 14 Electromagnetism 13 Electric equipment 12 Electric wiring, Interior 12 Electromagnetic theory 12 Microelectronics 12 Data processing 11 Computational intelligence 10