When an electromagnetic wave enters the ionised layer of ionosphere, the motion of electron cloud produces a space current and the electric field has its own capacitative displacement current then.

Options

A. The space current is in phase with displacement current.
B. The space current lags behind the displacement current by a phase of `180^(@)` .
C. the space current lages behind the displacement current by a phase of `90^(@)` .
D. the space current leads the displacement current by a phase of `90^(@)` .

Answer

D