Mechanical and Electrical Engineering are two entirely different fields of engineering, engaged in different areas of technology and systems. Mechanical Engineering is concerned with the design, analysis, and manufacturing of mechanical systems, which deals with principles of physics, thermodynamics, mechanics, and materials science.
That includes fields such as robotics, automotive design, energy systems, and manufacturing processes. Mechanical engineers care about everything that involves motion or mechanical force. Electrical engineering deals with the science and applications of electricity, electronics, and electromagnetism. It is broad and involves matters such as the generation and distribution of power, telecommunication, electronics, and control systems.
Electrical engineers design and develop electrical equipment from the microchip to power grids. While both areas involve a solid problem-solving basis and a very good understanding of physics, Mechanical Engineering seems to put more emphasis on mechanical systems and Electrical Engineering on electrical and electronic systems. However, often both of these disciplines join hands in a multidisciplinary project involving both mechanical and electrical components.