Electrical Engineering ⇒ Topic : Medium Partly Air

Medium Partly Air

As shown in Figure (a), the medium is partly of air and partly of parallel sided dielectric slab of thickness t and relative permittivity is ε_r. Here, the electric intensities are different.

                                                        figure (a)

                                                                     ...............    (1)

Medium partly air.:_Figure (a) shows a parallel plate capacitor having plates d metres apart.Suppose the medium between the plates consists partly of air and partly of dielectric of thickness t metres and relative permittivity ε_r2Then thickness of air is d - t. Using the relation (i) above, we have,

                                                                        FIGURE (A)