APPLICATION OF FARADAY'S LAW OF ELECTROMAGNETIC INDUCTION IN CIRCUIT ANALYSIS

The electric field generated by a changing magnetic field is not a conservative field. In non-conservative fields, voltage is not well-defined, and using Kirchhoff's voltage law may not accurately reveal the physical processes in a circuit. However, using Faraday's law of electromagnetic induction can avoid the problem of defining voltage in non-conservative fields and offers an advantage in dealing with circuits in changing magnetic fields. By calculating the line integral of the electric field and applying Faraday's law of electromagnetic induction, one can not only obtain correct results but also present a clear physical picture of the circuit's interior, clarifying some widespread misconceptions. If the teaching of electromagnetic induction laws includes such applications, it can deepen students' understanding of circuits and the fundamental laws of electromagnetism.