Engineering Electromagnetics
9th Edition
ISBN: 9780078028151
Author: Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher: Mcgraw-hill Education,
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 9, Problem 9.8P
A perfectly conducting filament is formed into a circular ling of radius a. At one point, a resistance R is inserted into the circuit and at another a battery of voltage V0 is inserted. Assume that the loop current itself produces negligible magnetic field. (a) Apply Faraday’s law, Eq. (4)= evaluating each side of the equation carefully and independently to show the equality; (b) repeat part a: assuming the battery is removed the ring is closed again, and a linearly increasing B field is applied in a direction normal to the loop surface.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The magnetic core in Figure 3. has a mean core length of 80 cm,
and its uniform cross-sectional area is 10 cm?. The relative
permeability of the core is 1,500, and an AC voltage source e(t)
=60 cos(120 t )V is connected across the coil of N = 100 turns.
Obtain an expression fo
n the core and the
current in the coil.
Induced voltage acts like a resistance to hinder the flow of current through an inductor.
True or False
It is often more desieable to the conductor instead of the magnetic field.
True or False
An electromagnet shown below has a cross section area of 10 cm2 with a mean length of iron path of 100cm
and mean length of airgap is 0.4cm . It is excited by a coil of 1000 turns of conductor windings. When a current
of 1A is provided to the coil and the relative permeability of iron is 1300, then find the magnetic flux in the
circuit.
Select one:
Oa. 1.25Wb
O b. None of these
Oc.0.00027Wb
O d. 027W.
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...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Consider the large inductor in Figure 3 with given number of turns N, core permeability μ, core cross section area A, and core diameter are given. Note that the core length l is equal to π times the core diameter. Answer the questions and pick an answer from the given choices. As a consequence, the practical inductor above can be represented by it inductance L in series with the resistance of the coil R (calculated above). Let this equivalent R-L circuit be connected to a 12 V source that has an internal resistance of 0.5 Ω as shown on the right hand side of Figure 3. Let switch SW2 be in the open position, while SW1 closed at t = 0. Nearly how long will it take the inductor to fully charge (i.e., reach steady-state)? 1) 1.5 sec 2) 100 msec 3) 18.5 min 4) 37 secarrow_forwardFull explanation pleasearrow_forward5) ) The point charge at the bottom of the figure is, Q = 17 nC and the curve is a circular arc, of radius r = 5 cm. What is the magnitude of the force on the charge Q due to the other point charges shown? -6.0 nC 2.0 nC 2.0 nC 45° 45° 5.0 cm 5.0 cm +) Explain or Show Work Here:arrow_forward
- electromagnetic field)I want a detailed solution because my teacher changes the numbers. I want a detailed solution. Understand the solutionarrow_forward5) This MCQ QUESTION FROM BASIC POWER ELECTRICAL ENGINEERING course. just write for me the the correct answer.arrow_forward4. By applying Kirchhoff's rules find currents on every part of the circuit. All devices are ideal. What is the potential difference between top-left and bottom-right vertex. What is the potential difference on the capacitor? What are the dissipated powers over resistors. 2R 28 E R With this homework we finish electricity part of our course. 33 (we skip Ch. 31), following homeworks will be on magnetic phenomena. Until Chapterarrow_forward
- solvearrow_forwardField current If can be varied by varying the resistance of field resistance which is connected in series with the field circuit. Select one: True Falsearrow_forwardA moving coil voltmeter with a resistance of 200 gives a full scale deflection of 120 degree, when a potential difference of 100mV is applied across it. The moving coil has dimension of 30mm*25mm and is wounded with 100 turns. The control spring constant is 0.375 *10-6N- m/ degree. Find the flux density, in the air gap. The specific resistance for copper=1.7* 10-80m . 0.13 0.22 0.15 0.12 0.2 wb/m2 wb/m2 wb/m2 wb/m2 wb/r flux densityarrow_forward
- Adding a core of magnetic material to an electromagnet: Select one: allows greater current to flow. decreases AC impedance. greatly increases the inductance. eliminates the magnetic poles.arrow_forwardProblem A potentiometer is an instrument for measuring an unknown voltage in comparison to a standard voltage. In the potentiometer shown in Figure 1.0 a 16.0-m stretch of wire AB is connected to a 9.00-V battery. The resistance per unit length of the wire is 16.0 0/mm. The movable contact P is at point B. An ammeter (circle with A inside) is connected to point A. 16.0 m A B www Figure: 1.0 A V = 9.00 Varrow_forwardPlease answer all subpart either dislike is ready.. Please both subpart in short for like..arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Electricity for Refrigeration, Heating, and Air C...Mechanical EngineeringISBN:9781337399128Author:Russell E. SmithPublisher:Cengage Learning
Power System Analysis and Design (MindTap Course ...Electrical EngineeringISBN:9781305632134Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. SarmaPublisher:Cengage Learning
Electricity for Refrigeration, Heating, and Air C...
Mechanical Engineering
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Cengage Learning
Power System Analysis and Design (MindTap Course ...
Electrical Engineering
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:Cengage Learning
Demos: Dielectric breakdown; Author: Caltech's Feynman Lecture Hall;https://www.youtube.com/watch?v=2YrHh1ikefI;License: Standard Youtube License