1. Mathematical basis: Electrical engineering involves a lot of mathematical knowledge, including advanced mathematics, linear algebra, probability theory and mathematical statistics. These mathematical knowledge is the basis for understanding and analyzing electrical engineering problems.
2. Physical foundation: Electrotechnics is a branch of physics, so it needs a solid physical foundation, especially electromagnetism, circuit theory, motor principle and so on.
3. Circuit analysis: The core of electrotechnics is circuit analysis, and it is necessary to master the working principles and analysis methods of DC circuits, AC circuits, transformers, motors and other circuit components.
4. Signals and systems: In electrical engineering, it is often necessary to deal with various signals, so it is necessary to master the basic concepts of signals and systems, signal representation and processing methods, system properties and analysis methods.
5. Control theory: Control system in electrical engineering is an important means to realize automation, and it is necessary to master the basic concepts of control theory, analysis and design methods of control system, etc.
6. Power system analysis: The power system in electrical engineering is an important facility for transmitting and distributing electric energy, and it is necessary to master the basic principle, steady-state analysis and transient analysis of the power system.
7. Electronic technology: Electronic equipment in electrotechnics is the key to realize various functions, and it is necessary to master the working principle of electronic devices and the design method of electronic circuits.
8. Computer technology: Computer technology in electrical engineering is an important means to realize automation and intelligence, and it needs to master basic knowledge such as computer software and hardware, programming languages and algorithms.
9. Communication principle: Communication technology in electrical engineering is an important means to realize information transmission, and it is necessary to master the basic concepts of communication principle, analysis and design methods of communication system, etc.
10. Hands-on ability: Electrical engineering is a very practical subject, which requires certain experimental and hands-on ability and proficiency in using various electrical equipment and tools.