Engineering Electromagnetics
9th Edition
ISBN: 9781260029963
Author: Hayt
Publisher: MCG
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Textbook Question
Chapter 3, Problem 3.23P
(a) A point charge Q lies at the origin. Show that div D is zero everywhere except at the origin. (b) Replace the point charge with a uniform volume charge density
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Students have asked these similar questions
1) Show that a regenerative receiver can be used to recover message from the following modulated
signals.
a. DSB-PC
b. DSB-SC
1b) Does the receiver need to recover the carrier phase?
1c) What are the filtering requirements and restrictions on message signal bandwidth and carrier
frequency.
2) Estimate the transmission bandwidth for the following FM modulated signals (W is the message
bandwidth)
a) W1KHz and frequency deviation of 75KHz
b) W = 20KHz and frequency deviation of 75KHz
c) W1KHz and frequency deviation of 150KHz
d) W20KHz and frequency deviation of 150KHZ
I want to explain how the result becomes (735.1) Hz)
and what are the steps and explain the reasons?
Q6 The FET shown in Fig. 1.43 has gm = 3.4mS and ra =100 K. Find the approximate
lower cutoff frequency. Ans: 735.1 Hz.
25V
2ΚΩ
1.5ΜΩ
0.02µF
0.02µF
20 ΚΩ
330kQ
820 ΩΣ
OpF
Fig. 1.43 Circuit for Q6.
40ΚΩ
Chapter 3 Solutions
Engineering Electromagnetics
Ch. 3 - Prob. 3.1PCh. 3 - An electric field in space is E=(5z2/C0)azV/m....Ch. 3 - Consider an electric dipole in free space,...Ch. 3 - An electric field in free space is E=(5z3/0)z V/m....Ch. 3 - A volume charge distribution in free space is...Ch. 3 - Prob. 3.6PCh. 3 - Prob. 3.7PCh. 3 - Use Gauss, law in integral form to show that an...Ch. 3 - A sphere of radius a free space contains charge of...Ch. 3 - An infinitely long cylindrical dielectric of...
Ch. 3 - Consider a cylindrical charge distribution having...Ch. 3 - The sun radiates a tota1 power of about 3.86...Ch. 3 - Spherical surfaces at r = 2, 4, and 6 m carry...Ch. 3 - Prob. 3.14PCh. 3 - Volume charge density is located as follows; pv=0...Ch. 3 - An electric flux density is given by D=D0aP, where...Ch. 3 - In a region having spherical symmetry, volume...Ch. 3 - State whether the divergence of the following...Ch. 3 - A spherical surface of radius 3 mm is centered at...Ch. 3 - A radial electric field distribution in free space...Ch. 3 - In a region exhibiting spherical symmetry,...Ch. 3 - (a) A flux density field is given as F1 = 5 az....Ch. 3 - (a) A point charge Q lies at the origin. Show that...Ch. 3 - In a region in free space, electric flux density...Ch. 3 - Within the spherical shell, 3D= 5(r-3)3a,C/m2 .(a)...Ch. 3 - If we have a perfect gas of mass density Px...Ch. 3 - Consider a slab of material containing a volume...Ch. 3 - Repeat Problem 3.8, but use .D= pv and take an...Ch. 3 - Prob. 3.29PCh. 3 - (a) Use Maxwells first equation. �. D=Pv, to...Ch. 3 - Prob. 3.31P
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