Saved Bookmarks
| 1. |
A plane electromagnetic wave of frequency v=10 MHz propagates in a poorly conducting medium with conductivity sigma=10 mS//m and permittivity epsilon=9. Find the ratio of amplitudes of conduction and displacement current densities. |
|
Answer» Solution :CONDUCTION current density `= sigmavec(E)` Displacement current density `=(deltavec(D))/( deltat)=epsilonepsilon_(0)(deltavec(E))/( delta t ) = i omega EPSILON epsilon_(0)vec(E)` Ration of magnitudes `=( sigma)/( omega epsilon epsilon_(0))=(j_(c))/( j_(dis))=2`,on putting the values. |
|