Answer to Question #77003 in Electricity and Magnetism for Gao Ning

Question

1. A dielectric half-space of relative permittivity 16 is separated from air half-space by a slab of another dielectric of relative permittivity 4. The thickness of the slab is 10mm.

2. Can this slab work as a quarter-wave transformer? if so, at which frequency (or frequencies )?

3. Consider a wave perpendicular incident from air, with electric field amplitude of 1 V/m. sketch the envelopes of the electric and magnetic fields at one frequency where there is no reflected wave in air. Mark the values of the envelops at both boundaries of the slab. Write down the value of the selected frequency.

Answer 1

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