Electrical Motor Controls for Integrated Systems Workbook
5th Edition
ISBN: 9780826912275
Author: Gary Rockis;Glen A. Mazur
Publisher: American Technical Publishers
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Chapter 5.1, Problem 6CP
To determine
To explain: The necessity of adding manufacturer’s terminal numbers in a control circuit.
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The magnetic field component of an EM wave propagating through a nonmagnetic
medium (po) is
=
Determine:
H=25 sin (2 x 10't + 6x) a, mA/m
(a) The direction of wave propagation.
(b) The permittivity of the medium.
(c) The electric field intensity.
In a certain medium with μo, & =
H 12e
480
y sin (x x 10% By) a, A/m
find: (a) the wave period T, (b) the wavelength A, (c) the electric field E, (d) the phase
difference between E and H.
A plane wave propagating through a medium with ɛ, = 8, μ, 2 has E = 0.5
e-3 sin(108tẞz) a, V/m. Determine
(a) B
(b) The loss tangent
(c) Wave impedance
(d) Wave velocity
(e) H field
Answer: (a) 1.374 rad/m, (b) 0.5154, (c) 177.72 /13.63° 2, (d) 7.278 × 107 m/s,
(e) 2.817e3sin(108 - Bz - 13.63°)a, mA/m.
Chapter 5 Solutions
Electrical Motor Controls for Integrated Systems Workbook
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- In a nonmagnetic medium, E = 50 cos (10% - 8x) a, + 40 sin (10't - 8x) a, V/m find the dielectric constant &, and the corresponding H.arrow_forwardA uniform plane wave in air with E = 8 cos (wt 4x - 3z) a, V/m is incident on a dielectric slab (z0) with pr = 1.0, 8, = 2.5, σ = 0. Find (a) The polarization of the wave (b) The angle of incidence (c) The reflected E field (d) The transmitted H fieldarrow_forwardA plane wave in a nonmagnetic medium has E = 50 sin (10% + 2z) a, V/m. Find (a) The direction of wave propagation (b) λ, f, and ε, (c) H Answer: (a) along -z direction, (b) 3.142 m, 15.92 MHz, 36, (c) 0.7958 sin(10% + 2z) a A/m.arrow_forward
- The magnetic field component of a plane wave in a lossless dielectric is = (a) If μ, 1, find ε,. H = 30 sin (2 × 10 - 5x) a, mA/m (b) Calculate the wavelength and wave velocity. (c) Determine the wave impedance. (d) Determine the polarization of the wave. (e) Find the corresponding electric field component. (f) Find the displacement current density.arrow_forwardMedium characterized by, σ = 0,μ = 2μ。 and e = 56 .If H = 2 cos(wt-3y) azcalculateE, warrow_forwardA uniform wave in air has E10 cos (2 × 10°t - ẞz) a, (a) Calculate ẞ and λ. (b) Sketch the wave at z = 0, №4. (c) Find H.arrow_forward
- engineering electromagnetics subjectarrow_forwardD8.2. The field B = -2ax + 3ay + 4a, mT is present in free space. Find the vector force exerted on a straight wire carrying 12 A in the aAB direction, given A(1, 1, 1) and: (a) B(2, 1, 1); (b) B(3, 5, 6). Ans. -48ay +36a, mN; 12ax - 216ay + 168az mNarrow_forward3 In a certain medium If μ = - E = 10 cos (2 x 10't ẞx)(a, + a.) V/m 50μo, ε = 28, and σ 0, find ẞ and H.arrow_forward
- A plane wave propagating through a medium with &,,-8 μr = 2 nas: E = 0.5 e-j0.33z sin (108 t - Bz) ax V/m. Determine (a) ẞ (b) The loss tangent (c) Wave impedance (d) Wave velocity (e) H fieldarrow_forwardIn a medium, E = 16e 0.05x sin (2 x 102x) a₂ V/m find: (a) the propagation constant, (b) the wavelength, (c) the speed of the wave, (d) the skin depth.arrow_forwardengineering electromagnetics subjectarrow_forward
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