Machine-translated by Google. Questions are authored in English.
Top

Discussion

Comparing the static and time-varying forms of the four equations, the terms that appear only in the time-varying case are

  • A.the two divergence equations
  • B.the conduction current density and the charge density
  • C.the constitutive relations of the medium
  • D.the time derivatives of the two flux densities

Answer: D

Setting the two time derivatives to zero decouples the electric and magnetic equations entirely, which is why electrostatics and magnetostatics can be studied separately. Restoring them couples the fields and makes waves possible.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.