State the modified Ampere's circuital law.

Explanation

Ampere-Maxwell law (modified Ampere's circuital law): Ampere's circuital law modified by Maxwell for a time-varying current states that in free space the line intergral of magnetic induction around a closed path in a magnetic field is equal to `mu_0` times the net steady current through a surface enclosed by the path and a contribution due to the changing electric flux arising from the time-varying current. In mathematical form.
`ointvecB.vec(dl)=mu_0(I_c+epsi_0(dphi_e)/(dt))`
Where `vecB` is the magnetic induction at any point on the path, `vec(dl)` is the length element of the path, `mu_0` is the permeability of free space. `I_c` is the total conduction current through a surface enclosed by the closed path and `I_d=epsi_0(dphi_e)/(dt)` is the fictitious displacement current arising from the changing electric flux `phi_e`.