Question

what is the equation of continuity in electrodynamics ?​

Answer 1

Answer:

The continuity equation says that if charge is moving out of a differential volume (i.e. divergence of current density is positive) then the amount of charge within that volume is going to decrease, so the rate of change of charge density is negative.

Answer 2

what is the equation of continuity in electrodynamics ?

answer: The continuity equation says that if charge is moving out of a differential volume (i.e. divergence of current density is positive) then the amount of charge within that volume is going to decrease, so the rate of change of charge density is negative.