Fundamentals of Electromagnetics with Engineering Applications
1st Edition
ISBN: 9780470105757
Author: Stuart M. Wentworth
Publisher: Wiley, John & Sons, Incorporated
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Chapter 4, Problem 4.30P
Suppose in free space that
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Chapter 4 Solutions
Fundamentals of Electromagnetics with Engineering Applications
Ch. 4 - How long does it take for charge density to drop...Ch. 4 - At a particular point in a slab of silver, a...Ch. 4 - A current density is given by J=e.01taA/m2. Find...Ch. 4 - At t=0s, 60.0C is evenly distributed throughout a...Ch. 4 - A propagating electric field is given by...Ch. 4 - A 10.0-MHz magnetic field travels in a fluid for...Ch. 4 - Modify the simple wave program in MATLAB 4.1 to...Ch. 4 - Modify the traveling wave program in MATLAB 4.2 to...Ch. 4 - Prob. 4.9PCh. 4 - A bar magnet is dropped through a conductive ring....
Ch. 4 - Considering Figure 4.7, suppose the area of a...Ch. 4 - Sometimes a transformer is used as an impedance...Ch. 4 - Prob. 4.13PCh. 4 - The mean length around a nickel core of a...Ch. 4 - A triangular wire loop has its vertices at the...Ch. 4 - Referring to Figure 4.23, suppose a conductive bar...Ch. 4 - Suppose we have a conductive bar moving along a...Ch. 4 - The radius r of a perfectly conducting metal loop...Ch. 4 - Rederive Vemf for the rectangular loop of Figure...Ch. 4 - In Figure 4.16, replace the rectangular loop with...Ch. 4 - Prob. 4.21PCh. 4 - Prob. 4.22PCh. 4 - A Faraday disk generator is similar to the...Ch. 4 - Prob. 4.24PCh. 4 - Prob. 4.25PCh. 4 - Suppose a vector field is given by A=2cosaz Verify...Ch. 4 - A pair of 60cm2 area plates are separated by a...Ch. 4 - Plot the loss tangent of seawater ( =4S/m and r=81...Ch. 4 - A 1.0-m-long coaxial cable of inner conductor...Ch. 4 - Suppose in free space that E(z,t)=5.0e2ztaxV/m. Is...Ch. 4 - An electric field propagating in a lossless...Ch. 4 - A magnetic field propagating in free space is...Ch. 4 - Find the instantaneous expression for E for the...Ch. 4 - Given, at some point distant from a source at the...Ch. 4 - In a lossless, nonmagnetic media, the magnetic...Ch. 4 - Suppose, in a nonmagnetic medium of relative...Ch. 4 - Prob. 4.37PCh. 4 - Prob. 4.38PCh. 4 - Prob. 4.39PCh. 4 - Find E(z,t) in Problem 4.32 using phasors.Ch. 4 - Prob. 4.41PCh. 4 - Find H(y,t) in Problem 4.36 using phasors.Ch. 4 - In MATLAB 4.4, a polar plot of the phasor...
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- A wave is normally incident upon a surface with a layered lossless dielectric. Find the magnitude of effective reflection coefficient if medium 1 is free space, medium 2 has a relative permittiviy of 4 medium 3 has a permittivity of 9, and the thickness of medium 2 is 12/2. ...arrow_forwardWhat are reflection and transmission coefficients? Derive the formula for the same. When an EM wave travels from a dielectric (medium-1) to the conductor,then what will be the value of these parameters?arrow_forwardIn a uniform electromagnetic wave which is at a significant distance from the source of energy if the wave is falling from medium 1(z<0,σ=0,µr = 2,ɛr =9) to a second medium where the values are (z>0,σ=0,µr = 16,ɛr =4) . Find the values of reflection and transmission coefficient in this scenarioarrow_forward
- Type your question here A 150-MHz uniform plane wave is normally incident from air onto a material whose intrinsic impedance is unknown. Measurements yield a standing wave ratio of 3 and the appearance of an electric field minimum at 0.3 wavelengths in front of the interface. Determine the impedance of the unknown material.arrow_forwardWhat are transmission lines and what are the effects and causes of transmission lines, then mention the difference between the spread of electromagnetic waves in transmission lines and spread in free space?arrow_forwardFind the velocity of a plane wave in a lossless medium with relative permeability of 5 and relative permittivity of 15.arrow_forward
- A uniform plane wave propagating in a medium has overline E =2e^ -az sin(10^ 8 t- beta z) hat y V/m . If the medium is characterized by epsilon R =1 mu R =20 , and o=3 S/m, find a, B and overline Harrow_forwardA 120 MHz TE polarized wave with amplitude 1.0 V/m is obliquely incident from air (z < 0) onto a slab of lossless, nonmagnetic material with εr = 81 (z > 0). The angle of incidence is 70°. Evaluate the electromagnetic field conditions given to compute the values of the reflection and transmission coefficientsarrow_forwardThe plane wave with a frequency of 3 GHz has a relative dielectric constant of 2.5, a loss tangent of 0.05, and travels in a non-magnetic medium. What is the phase constant of the wave?arrow_forward
- If a wave propagating in z-direction and incident on the air-glass interface at z= 0, plot the E field (amplitudes only) in the yz plane (plane of incidence) for :a. TE incidenceb. TM incidence Take -2lambda<y,z<2lambda for plotting. (Take lambda of your own choice. Amplitude = 1V/m.) If the angle of incidence is 30 degrees in the above case, what should be the E field distribution?arrow_forwardA plane electromagnetic wave is having a frequency of 20 MHz. If the value of relative permitivity and relative permeability is 5 and 4 respectively, what will be value of the velocity of the wave provided the medium is lossless.arrow_forwardA plane wave propagating in air comes perpendicular to a layer from a lossless insulation with a relative dielectric value of 9. If the amplitude of the incoming wave is 1 V/m, what is the amplitude of the transmitted wave? -1/2 V/m 1/2 V/m 1/3 V/m -1/3 V/marrow_forward
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What Is a Plane Wave? — Lesson 2; Author: EMViso;https://www.youtube.com/watch?v=ES2WFevGM0g;License: Standard Youtube License