The displacement current density (Jd) is calculated using the equation Jd = dD/dt, where D is the electric flux density vector (xy, yz, xz). In this case, differentiating D with respect to time results in zero, indicating that the electric flux density is not changing over time. This implies that the field is electrostatic rather than time-varying. Consequently, without a time-varying electric flux density, there is no displacement current present.
PREREQUISITESStudents of electromagnetism, electrical engineers, and anyone studying the principles of electric fields and displacement current in physics.
lazyaditya said:If you are getting a "0" as differentiation of electric flux density that means that electric flux density is not changing with time,which means it is electrostatic and not time varying field. You can see this from an example, by keeping D.C voltage across capacitor the current in circuit becomes zero eventually this is because voltage is constant or of zero frequency. So if you don't have a time varying electric flux density there won't be displacement current.