Field versus action-at-a-distance in a static situation
Physics and Astronomy
The introduction of the electromagnetic field has been a necessity only in time‐varying cases. In static or steady‐state cases, it has been mostly a convenience. An example is discussed where even in static situations the field is a necessity in order to conserve angular momentum. The results are used to provide a classical picture for the electron spin in terms of the angular momentum of the associated electromagnetic field.
Link to Published Version
Sharma, N. (1988). Field versus action-at-a-distance in a static situation. American Journal of Physics, 56(5), 420–423. doi:10.1119/1.15592