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 8, Problem 8.42P
Find the mutual inductance between two filaments forming circular rings of radii a and ∇a, where ∇a << a. The field should be determined by approximate methods. The rings are coplanar and concentric.
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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.
Chapter 8 Solutions
Engineering Electromagnetics
Ch. 8 - A point charge, Q = - 0.3 /C and m = 3 Ă— -10-16...Ch. 8 - Prob. 8.2PCh. 8 - Prob. 8.3PCh. 8 - Show that a charged particle in a uniform magnetic...Ch. 8 - Prob. 8.5PCh. 8 - Show that the differential work in moving a...Ch. 8 - A conducting strip of infinite length lies in the...Ch. 8 - Two conducting strips, having infinite length in...Ch. 8 - A current of-100az A/m flows on the conducting...Ch. 8 - A planar transmission line consists of two...
Ch. 8 - Prob. 8.11PCh. 8 - Two circular wire rings are parallel to each...Ch. 8 - An infinitely long current filament is oriented...Ch. 8 - A solenoid is 25 era long, 3 cm in diameter, and...Ch. 8 - Prob. 8.15PCh. 8 - Prob. 8.16PCh. 8 - Prob. 8.17PCh. 8 - Prob. 8.18PCh. 8 - Given a material for which ℵK = 3.1 and within...Ch. 8 - Find H in a material where (a) fir = 4.2, there...Ch. 8 - Prob. 8.21PCh. 8 - Prob. 8.22PCh. 8 - Calculate values for HO,B0, and M0 at p = c for a...Ch. 8 - Two current sheets, K0,ay, A/m at z = 0 and -K0,ay...Ch. 8 - Prob. 8.25PCh. 8 - Prob. 8.26PCh. 8 - Let đ�œ‡rj = 2 in region 1, defined by 2x + 3y —...Ch. 8 - For values of B below the knee on the...Ch. 8 - Prob. 8.29PCh. 8 - Prob. 8.30PCh. 8 - A toroid is constructed of a magnetic material...Ch. 8 - Prob. 8.32PCh. 8 - Prob. 8.33PCh. 8 - Determine the energy stored per unit length in the...Ch. 8 - Prob. 8.35PCh. 8 - Prob. 8.36PCh. 8 - A Toroid has known, reluctance R. Two windings...Ch. 8 - Prob. 8.38PCh. 8 - Conducting planes in air at Z = 0 and z = d carry...Ch. 8 - Prob. 8.40PCh. 8 - Prob. 8.41PCh. 8 - Find the mutual inductance between two filaments...Ch. 8 - Prob. 8.43PCh. 8 - Prob. 8.44PCh. 8 - Beginning with the definition, of the scalar...
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- 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?arrow_forwardConsider 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.arrow_forward1. A process is modeled by: (x₁(k+1) 22(k+1), B)) = (0.2 0.2 0.5 0.5) (21(k)) + (9) u(k) y(k) = (1 0) (1(k)) Find: b) (2 p) The detailed block diagram of the entire control system (plant + controller + observer). Knowing that the gain matrix of a servo-controller is [0.18; 0.2] and the gain matrix of an observer is: 0.8 1.28arrow_forward
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