 #1
christang_1023
 27
 3
 Homework Statement:

1. Is Lenz's law applied only when there is a closed loop?
2. When a ring in a changing magnetic field is not complete (i.e. open circuit with a small gap), how to analyze the emf of the ring?
 Relevant Equations:
 Shown below
Above is an example figure.
2. When a ring in a changing magnetic field is not complete (i.e. open circuit with a small gap), how to analyze the emf of the ring?
According to the general form of Faraday's law, ## \oint \vec{E} \cdot d \vec{s} = \frac{d \Phi}{dt} ##, I deduce that although it is not a closed loop, there is still emf within the incomplete ring conductor. How can I derive the emf of this ring?