2. Given a nonmagnetic material having e,=4.0 and loss tangent of 0.25, if a uniform plane wave at f-1 MHz with x-directed electric field and amplitude of 100 V/m at z-0 is propagating in the +z direction through such material, find the time- average power density at a. z-0 b. z- 50 m.

2. Given a nonmagnetic material having e,=4.0 and loss tangent of 0.25, if a uniform plane wave at f-1 MHz with x-directed electric field and amplitude of 100 V/m at z-0 is propagating in the +z direction through such material, find the time- average power density at a. z-0 b. z- 50 m.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Concept explainers

Dielectric Breakdown

A dielectric is a material with low electrical conductivity and so is classified as an insulator. Dielectric materials are used to block the flow of electricity through them, allowing them to behave as an insulators. They can also be used to store electric charge or improve capacitance.Dielectrics have no free electrons for conduction because electrons are tightly bound to the nucleus. Because dielectrics contain a small number of electrons for electrical conductivity, they have a dipole. The two primary roles of dielectrics in electrical devices are insulation and electrical energy storage. An electric field polarizes the dielectric, and the polarization of the molecules allows dielectric materials to store charge.

Question

2. Given a nonmagnetic material having e,=4.0 and loss tangent of 0.25, if a
uniform plane wave at f-1 MHz with x-directed electric field and amplitude of 100
V/m at z-0 is propagating in the +z direction through such material, find the time-
average power density at
a. z-0
b. z- 50 m.
Use
a = Re(jk) = S

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