Modified ampere's circuital law.
It states that the line integral of the magnetic field induction B around any closed path or circuit is equal to the ‘μo’times sum of conduction current & displacement current. I.e ∮B • dl = μo (Ic+Id) Where, Ic=conduction current Id=displacement current Value of displacement current ‘Id’ is Id = ε d∅/dt Where, ∅ = electric flux It is also known as Ampere Maxwell's circuital law.