What is meant by the term 'displacement current'? Briefly explain how this current is different from a conduction current.

Displacement current: It is the current that arises due to the rate of change of electric field/flux. Alternatively:- \[I_{d}=\varepsilon_{0}\left(\frac{d \phi_{E}}{d t}\right) \] Alternatively: The term with units of current to explain the continuity of current in a region. Difference: Displacement current is due to change in electric flux. Conduction current is due to flow of electrons. Alternatively: \[\begin{aligned} & I_{d}=\varepsilon_{0}\left(\frac{d \phi_{E}}{d t}\right) \\ & I_{c}=\frac{d q}{d t} \end{aligned} \]