How Do We Understand?
How can we understand the results?
- DC current … no detected fields
- AC current … fields detected
Answer?
- Actually we do not yet have all that we need to know to understand this phenomenon.
- One of our basic laws (Ampere’s Law) needs to be modified!!
J. C. Maxwell (~1860) realizes that the equations of electricity & magnetism are inconsistent with the conservation of charge!
It should not be obvious to you that these equations are inconsistent with conservation of charge, but there is a lack of symmetry here!