Loose Leaf For Engineering Electromagnetics
9th Edition
ISBN: 9781260472370
Author: John A. Buck, William H. Hayt
Publisher: McGraw-Hill Education
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Question
Chapter 7, Problem 7.25P
To determine
(a)
The total current in the
To determine
(b)
The total current in the
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In a non-magnetic medium (μ = μ0) E = 40 cos(6/5x109 t + By)ax −20 sin(6/5x109 t + By)az V/m, with B = (8) rad/m. Determine the value of H and the total permittivity of the medium.
Region 2 (Z > 0) is free space, while region 1 (Z < 0) is a magnetic material where µ1 = 20 µ0, B1 = 20ax – 15ay + 30az mWb/m2 the magnetic field intensity in X direction equals to
Region 2 (Z > 0) is free space, while region 1 (Z < 0) is a magnetic material where µ1 = 20 µ0, B1 = 20ax – 15ay + 30az mWb/m2 the magnetic field intensity in Y direction equals to
Chapter 7 Solutions
Loose Leaf For Engineering Electromagnetics
Ch. 7 - Find H in rectangular components at P(2,3,4) if...Ch. 7 - Prob. 7.2PCh. 7 - Prob. 7.3PCh. 7 - Prob. 7.4PCh. 7 - The parallel filamentary conductors shown in...Ch. 7 - A disk of radius a lies in the xy plane, with z...Ch. 7 - Prob. 7.7PCh. 7 - For the finite-length current element on the z...Ch. 7 - Prob. 7.9PCh. 7 - Prob. 7.10P
Ch. 7 - A solenoid of radius a and of length. L is...Ch. 7 - Prob. 7.12PCh. 7 - Prob. 7.13PCh. 7 - Prob. 7.14PCh. 7 - Prob. 7.15PCh. 7 - A current filament carrying I in the -az direction...Ch. 7 - Prob. 7.17PCh. 7 - Prob. 7.18PCh. 7 - Prob. 7.19PCh. 7 - A solid conductor of circular cross section with a...Ch. 7 - Prob. 7.21PCh. 7 - Prob. 7.22PCh. 7 - Prob. 7.23PCh. 7 - Prob. 7.24PCh. 7 - Prob. 7.25PCh. 7 - Prob. 7.26PCh. 7 - The magnetic field intensity is given in a certain...Ch. 7 - Given H=(3r2/sin)a+54rcosa A/m in free space: (a)...Ch. 7 - Prob. 7.29PCh. 7 - Prob. 7.30PCh. 7 - Prob. 7.31PCh. 7 - Prob. 7.32PCh. 7 - Use an expansion in rectangular coordinates to...Ch. 7 - A filamentary conductor on the z axis carries a...Ch. 7 - A current sheet K = 20 az A/m, is located at p =...Ch. 7 - Let A= (3y-z)ax+2xzayWb/m in a certain regin of...Ch. 7 - Let/N=1000, I=.08 A, p0=2 cm and a=.08 cm for the...Ch. 7 - A square filamentary differential current loop, dL...Ch. 7 - Prob. 7.39PCh. 7 - Show that the line integral of the vector...Ch. 7 - Prob. 7.41PCh. 7 - Show that 2(1/R12)=1(1/R12)=R21/R312.Ch. 7 - Compute the vector magnetic potential within the...Ch. 7 - Prob. 7.44P
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Similar questions
- 3.2 A generator has a copper conductor of 6 m length, rotating at a speed of 10 m/s at a right angle to the uniform magnetic flux density of 10 T. 3.2.1 Determine the magnitude of the induced emf across the ends of the conductor. 3.2.2 Determine the magnitude of the induced emf if the flux density changes to 15 T.arrow_forwardcompute the total flux crossing the z=0 in cylindrical coordinates p≤ 5x10^-3m if B=2/p(sin²φ)az and tge total magnetic flux density.arrow_forwardQuestion A generator has a copper conductor of 6 m length, rotating at a speed of 10 m/s at a right angle to the uniform magnetic flux density of 10 T. 3.2.1) Determine the magnitude of the induced emf across the ends of the conductor. 3.2.2) Determine the magnitude of the induced emf if the flux density changes to 15 T.arrow_forward
- The cross section of a homopolar generator disk is shown . The disk has inner radius ρ1 = 2 cm and outer radius ρ2 = 10 cm and rotates in a uniform magnetic field 15 mWb/m2 at a speed of 60 rad/s. Calculate the induced voltage.arrow_forwardProblem 10: An infinitely long wire carries a current of I = 150 A. Randomized VariablesI = 150 A Part (a) Consider a circle with a radius r and centered on the wire. Determine the magnitude of the magnetic field B at points along the circle in terms of I and r.arrow_forwardsl For static (time-independent) fields, which of the following current densities are possible? (1) J = 2x%ya + 4x%7%ay - 6xyZ a; @) J=xyac+y@+Day Find the total current outward directed from a one meter cube with one corner at the origin and edges parallel to the coordinates axes if J=2x2ac+ 2xy? ay+ 23y a(A/m?).arrow_forward
- The linear velocity of a point on the tip of a 0.3m radius fan rotating at an angular velocity of 25rad / sarrow_forwardWhen a dielectric plate is inserted into a uniform electric field, the electric field in the dielectric is larger than outside of the dielectric. Select one: True Falsearrow_forwardThe magnetic field intensity in free space is H=25cos(βz+20000t)ay A/m. Find a) The phase constat b) the wavelength c) The velocity of propagation d) The corresponding E fieldarrow_forward
- a) To increase the output of an ac generator, a student has the choice of doubling either the generator's magnetic field or its frequency. To maximize the increse in emf output, A - he should double the magentic field.B - he should double the frequency.C - it does not matter which one he doubles. b) Two students display their ac generators at a science fair. The generator made by Student A has a loop area of 100 cm22 rotating in a magnetic field of 20 mT at at 60 Hz. The generator made by Student B has a loop area of 75 cm22 rotating in a magnetic field of 200 mT at at 120 Hz. Calculate the emf of the two generators. Student A: Student B:arrow_forwardA long wire stretches along the xx axis and carries a 3.0 Acurrent to the right (+x)(+x). The wire is in a uniform magnetic field B⃗ =(0.25i−0.36j+0.24k)TB→=(0.25i−0.36j+0.24k)T. Determine the y-component of the force on the wire per cmcm of length. Express your answers using two significant figures. Determine the z-component of the force on the wire per cmcm of length.arrow_forwardFigure 17.54 shows some of the electric field lines due to three point charges arranged along the vertical axis. All three charges have the same magnitude. (a) What are the signs of the three charges? Explain your reasoning. (b) At what point(s) is the magnitude of the electric field the smallest? Explain your reasoning. Explain how the fields produced by each individual point charge combine to give a small net field at this point or pointsarrow_forward
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