Presents mathematical and physical problem-solving techniques in a way that can be extended to other subjects besides electromagnetic waves.; interesting practical problems are provided throughout, and are the basis for end-of-chapter problems. Progresses from simple wave propagation in unbounded free space to antenna and resonator design.; begins directly with Maxwell's equations and their. Electromagnetic Waves, David H. Staelin, 1994, Science, 562 pages. This introduction to electromagnetic waves emphasizes concepts, examples, and problem-solving techniques having wide applicability, and relies only on basic physics. Theory of electromagnetic waves.
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SES # | TOPICS | NOTES | |
---|---|---|---|
Foundations | |||
L1 | Foundations, forces and fields, Gauss's and Ampere's laws (∫) for static fields | (PDF) | |
L2 | Media, boundary conditions | (PDF) | |
L3 | Review vector operators; Maxwell's differential equations (t), E, H, uniform plane wave; sin (ωt) | (PDF) | |
L4 | Poynting theorem derivation (time), UPW example (we, wm, S(t)) | (PDF) | |
Forces, motors, generators, and MEMS | |||
L5 | Electric forces on e-beams, C plates, force from ∂w/∂z; generators and sensors | (PDF) | |
L6 | Magnetic pressure, rotary wire and reluctance motors, forces on materials | (PDF) | |
L7 | Static Φ and fields, Laplace's equation, separation of variables (x,y,z); inhomogeneous materials | (PDF) | |
Waves in media and at boundaries | |||
L8 | Electromagnetic fields in media, uniaxial media, quarter-wave plate | (PDF) | |
L9 | Boundary conditions, k•r, phase matching, non-uniform plane wave, Snell's law | (PDF) | |
L10 | TE at planar boundary, TM by duality, Brewster's angle | (PDF) | |
Limits to computation speed | |||
L11 | Device and line delays; TEM parallel-plate line, telegraphers' equation, Zo | (PDF) | |
L12 | Transients: Thevenin equivalents; L, C, diode loads; initial conditions; lossy TEM | (PDF) | |
RF/microwave guidance and filtering | |||
L13 | Architecture, generalized TEM line, Ζ(z), Γ(z), Ζ transformations | (PDF) | |
L14 | RLC resonators, series, parallel, ωo, ∆ω, α, QL, QI, QE, coupling | (PDF) | |
L15 | TEM resonators, we(t), wm(t), Q, ∆ω, examples; |V(z,f)| | (PDF) | |
L16 | TEmn rectangular waveguide, cavity resonators, perturbations | (PDF) | |
Wireless communications | |||
L17 | Conservation of energy, power, G(θ,φ), Ae= Gλ2 /4π, Rr, VTh, RF links | (PDF) | |
L18 | Radiation by current elements, Hertzian dipole, near and far fields; Biot-Savart | (PDF - 1.6MB) | |
L19 | Receiving antennas: VTh in dipoles and loops; d<<λ/2π, G = 4πA/λ2 | (PDF) | |
L20 | Aperture antennas, diffraction | (PDF) | |
Optical communications | |||
L21 | Optical fibers, applications, dielectric slab waveguide, fiber design | (PDF) | |
L22 | Lasers | (PDF) | |
Acoustics | |||
L23 | Acoustic waves, boundary conditions, reflections, antennas | (PDF) | |
L24 | Course philosophy, resonator perturbations and speech generation | (PDF) |
Morgenthaler, and Jin Au Kong, Electromagnetic Waves (Prentice -Hall, 1994) ISBN 0-13 -225871 -4. Stevens, The Six Core Theories of Modern Physics, (MIT Press, 1995) ISBN 0-262.
Free PDF Download of CBSE Physics Multiple Choice Questions for Class 12 with Answers Chapter 8 Electromagnetic Waves. Physics MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 12 Physics Electromagnetic Waves MCQs Pdf with Answers to know their preparation level.
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Electromagnetic Waves Class 12 Physics MCQs Pdf
1. Maxwell in his famous equations of electromagnetism introduced the concept of
(a) ac current
(b) displacement current
(c) impedance
(d) reactance
(a) ac current
(b) displacement current
(c) impedance
(d) reactance
Answer: b
2. The conduction current is same as displacement current when source is
(a) ac only
(b) dc only
(c) either ac or dc
(d) neither dc nor ac
(a) ac only
(b) dc only
(c) either ac or dc
(d) neither dc nor ac
Answer: c
3. If a variable frequency ac source is connected to a capacitor then with decrease in frequency the displacement current will
(a) increase
(b) decrease
(c) remains constant
(d) first decrease then increase
(a) increase
(b) decrease
(c) remains constant
(d) first decrease then increase
Answer: b
4. An electromagnetic wave can be produced, when charge is
(a) moving with a constant velocity
(b) moving in a circular orbit
(c) falling in an electric field
(d) both (b) and (c)
(a) moving with a constant velocity
(b) moving in a circular orbit
(c) falling in an electric field
(d) both (b) and (c)
Answer: d
5. Which of the following statement is false for the properties of electromagnetic waves?
(a) Both electric and magnetic field vectors attain the maxima and minima at the same place and same time.
(b) The energy in electromagnetic waves is divided equally between electric and magnetic field vectors.
(c) Both electric and magnetic field vectors are parallel to each other and perpendicular to the direction of propagation of wave.
(d) These waves do not require any material medium for propagation.
(a) Both electric and magnetic field vectors attain the maxima and minima at the same place and same time.
(b) The energy in electromagnetic waves is divided equally between electric and magnetic field vectors.
(c) Both electric and magnetic field vectors are parallel to each other and perpendicular to the direction of propagation of wave.
(d) These waves do not require any material medium for propagation.
Answer: c
6. Which of the following has/have zero average value in a plane electromagnetic wave?
(a) Both magnetic and electric fields
(b) Electric field only
(c) Magnetic field only
(d) None of these
(a) Both magnetic and electric fields
(b) Electric field only
(c) Magnetic field only
(d) None of these
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Answer: a
7. A charged particle oscillates about its mean equilibrium position with a frequency of 109 Hz. The frequency of electromagnetic waves produced by the oscillator is
(a) 106 Hz
(b) 107 Hz
(c) 108 Hz
(d) 109 Hz
(a) 106 Hz
(b) 107 Hz
(c) 108 Hz
(d) 109 Hz
Answer: d
8. If E and B denote electric and magnetic fields respectively, which of the following is dimensionless?
Electromagnetic Waves Staelin Pdf Combiner
Answer: a
9. The ultra high frequency band of radio waves in electromagnetic wave is used as in
(a) television waves
(b) cellular phone communication
(c) commercial FM radio
(d) both (a) and (c)
(a) television waves
(b) cellular phone communication
(c) commercial FM radio
(d) both (a) and (c)
Electromagnetic Waves Staelin Pdf Free
Answer: b
10. The waves used by artificial satellites for communication is
(a) microwaves
(b) infrared waves
(c) radio waves
(d) X-rays
(a) microwaves
(b) infrared waves
(c) radio waves
(d) X-rays
Answer: a
11. Which of the following electromagnetic waves is used in medicine to destroy cancer cells?
(a) IR-rays
(b) Visible rays
(c) Gamma rays
(d) Ultraviolet rays
(a) IR-rays
(b) Visible rays
(c) Gamma rays
(d) Ultraviolet rays
Electromagnetic Waves Staelin Pdf Download
Answer: c
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