Engineering Electromagnetics
9th Edition
ISBN: 9780078028151
Author: Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher: Mcgraw-hill Education,
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Textbook Question
Chapter 9, Problem 9.17P
The electric field intensity in the region 0<<em>x<5,0
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3. A Si step junction maintained at room temperature under equilibrium conditions has a p-side doping of
NA=2X1015/cm³ and an n-side doping of ND=1015/cm³. Compare
a) Vbi
b) xp, Xn, and W
c) ɛ at x=0
d) V at x=0
Make sketches that are roughly to scale of the charge density, electric field, and electrostatic
potential as a function of position.
4. Repeat problem 3, taking NA=10¹7/ cm³ to be the p-side doping. Briefly compare the results here with
those of problem 3.
The p-i-n diode shown schematically in Fig 5 is a three-region device with a middle region that is
intrinsic and relatively narrow. Assuming the p and n regions to be uniformly doped and ND-NA=0 in
the i-region.
a) Roughly sketch the expected charge density, electric field, and electrostatic potential inside the
device. Also draw the energy band diagram for the device under equilibrium conditions.
b) What is the built-in voltage drop between the p and n regions?
Consider the p1-p2 "isotype" step junction shown in Figure 2.
a) Draw the equilibrium energy band diagram for the junction, taking the doping to be non
degenerate and NA1 > NA2
b) Derive an expression for the built-in voltage (Vыi) that exists across the junction under
equilibrium conditions
c) Make rough sketches of the potential, electric field, and charge density inside the junction.
Chapter 9 Solutions
Engineering Electromagnetics
Ch. 9 - Prob. 9.1PCh. 9 - Prob. 9.2PCh. 9 - Prob. 9.3PCh. 9 - A rectangular loop of wire containing a...Ch. 9 - The location of the sliding bar in Figure 9.5 is...Ch. 9 - Prob. 9.6PCh. 9 - The rails in Figure 9.6 each have a resistance of...Ch. 9 - A perfectly conducting filament is formed into a...Ch. 9 - A square filamentary loop of wire is 25 cm on a...Ch. 9 - (a) Show that the ratio of the amplitudes of the...
Ch. 9 - Let the internal dimensions of a coaxial capacitor...Ch. 9 - Prob. 9.12PCh. 9 - En free space it is known that E = E0/r sin...Ch. 9 - A voltage source V0, sin cot is connected between...Ch. 9 - Use each of Maxwells equations in point form to...Ch. 9 - Derive the continuity equation from Maxwells...Ch. 9 - The electric field intensity in the region...Ch. 9 - Prob. 9.18PCh. 9 - In Section 9.1. Faradays law was used to show that...Ch. 9 - Prob. 9.20PCh. 9 - (a) Show that under static field conditions; Eq....Ch. 9 - Prob. 9.22PCh. 9 - Prob. 9.23PCh. 9 - A vector potential is given as A = A0 cos(đ�œ”t =...Ch. 9 - Prob. 9.25PCh. 9 - Write Maxwells equations in point form in terms of...
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