EP PHYSICS F/SCI.+ENGR.W/MOD..-MOD MAST
4th Edition
ISBN: 9780133899634
Author: GIANCOLI
Publisher: PEARSON CO
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 28, Problem 71GP
To determine
The required ratio
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
(I) A long thin iron-core solenoid has 380 loops of wire permeter, and a 350-mA current flows through the wire. If thepermeability of the iron is 3000µ0 what is the total field Binside the solenoid?
(2) Side-by-side wires. Two very long cylindrical wires of length L, each of radius R, run right next
to each other, as shown. , The left wire carries current I into the page, while the right wire carries
equal current out of the page. In both wires, the current is uniformly distributed across the whole
cross-sectional area. If we looked from the side, the points W, X, Y, Z are all far from the ends of the
wires. What is the magnitude and direction of the magnetic field at each of the points below?
(a) W, the center of the left wire.
(b) X, a distance R/2 from the center of the left wire and R/2 from the edge of the right wire.
(c) Y, where the wires touch.
(d) Z, a distance 2R from the centers of both wires.
Current into page
Current out of page
W X
Y
Two long straight aluminum wires, each of diameter 0.42 mm,
carry the same current but in opposite direc-
tions. They are suspended by 0.50-m-long
strings as shown in Fig. 20-67. If the
suspension strings make an angle of 3.0°
with the vertical and are hanging freely,
6.0°
what is the current in the wires?
FIGURE 20-67
Problem 78.
-0.50 m-
Chapter 28 Solutions
EP PHYSICS F/SCI.+ENGR.W/MOD..-MOD MAST
Ch. 28.1 - In Example 2510 we saw that a typical lightning...Ch. 28.1 - Suppose both I1 and I2 point into the page in Fig....Ch. 28.4 - Prob. 1CECh. 28 - The magnetic field due to current in wires in your...Ch. 28 - Compare and contrast the magnetic field due to a...Ch. 28 - Two insulated long wires carrying equal currents I...Ch. 28 - Prob. 4QCh. 28 - A horizontal current-carrying wire, free to move...Ch. 28 - (a) Write Ampres law for a path that surrounds...Ch. 28 - Suppose the cylindrical conductor of Fig. 2811a...
Ch. 28 - Explain why a field such as that shown in Fig....Ch. 28 - Prob. 9QCh. 28 - Use the Biot-Savart law to show that the field of...Ch. 28 - Prob. 11QCh. 28 - Why does twisting the lead-in wires to electrical...Ch. 28 - Compare the Biot-Savart law with Coulombs law....Ch. 28 - How might you define or determine the magnetic...Ch. 28 - How might you measure the magnetic dipole moment...Ch. 28 - A type of magnetic switch similar to a solenoid is...Ch. 28 - A heavy magnet attracts, from rest, a heavy block...Ch. 28 - Will a magnet attract any metallic object, such as...Ch. 28 - An unmagnetized nail will not attract an...Ch. 28 - Prob. 20QCh. 28 - Prob. 21QCh. 28 - Prob. 22QCh. 28 - Prob. 23QCh. 28 - Two iron bars attract each other no matter which...Ch. 28 - Describe the magnetization curve for (a) a...Ch. 28 - Prob. 26QCh. 28 - (I) Jumper cables used to start a stalled vehicle...Ch. 28 - (I) If an electric wire is allowed to produce a...Ch. 28 - Prob. 3PCh. 28 - Prob. 4PCh. 28 - Prob. 5PCh. 28 - (II) An experiment on the Earths magnetic field is...Ch. 28 - Prob. 7PCh. 28 - At the location of the compass, the magnetic field...Ch. 28 - (II) A long horizontal wire carries 24.0 A of...Ch. 28 - (II) A straight stream of protons passes a given...Ch. 28 - (II) Determine the magnetic field midway between...Ch. 28 - (II) Two straight parallel wires are separated by...Ch. 28 - (II) Two long straight wires each carry a current...Ch. 28 - (II) A long pair of insulated wires serves to...Ch. 28 - (II) A third wire is placed in the plane of the...Ch. 28 - (II) A power line carries a current of 95 A west...Ch. 28 - (II) A compass needle points 28 E of N outdoors....Ch. 28 - Prob. 18PCh. 28 - (II) Let two long parallel wires, a distance d...Ch. 28 - (II) Repeat Problem 19 if the wire at x = 0...Ch. 28 - (II) Two long wires are oriented so that they are...Ch. 28 - (II) Two long parallel wires 8.20 cm apart carry...Ch. 28 - (III) A very long flat conducting strip of width d...Ch. 28 - (III) A triangular loop of side length a carries a...Ch. 28 - Prob. 25PCh. 28 - Prob. 26PCh. 28 - (I) A 2.5-mm-diameter copper wire carries a 33-A...Ch. 28 - (II) A toroid (Fig. 2817) has a 50.0-cm inner...Ch. 28 - Prob. 29PCh. 28 - (II) (a) Use Eq. 281, and the vector nature of B,...Ch. 28 - (II) A coaxial cable consists of a solid inner...Ch. 28 - (III) Suppose the current in the coaxial cable of...Ch. 28 - Prob. 33PCh. 28 - (II) A wire, in a plane, has the shape shown in...Ch. 28 - (II) A circular conducting ring of radius R is...Ch. 28 - (II) A small loop of wire of radius 1.8 cm is...Ch. 28 - Prob. 37PCh. 28 - Prob. 38PCh. 28 - Prob. 39PCh. 28 - Prob. 40PCh. 28 - Prob. 41PCh. 28 - (III) Use the result of Problem 41 to find the...Ch. 28 - (III) A wire is bent into the shape of a regular...Ch. 28 - Prob. 44PCh. 28 - Prob. 45PCh. 28 - (III) A square loop of wire, of side d, carries a...Ch. 28 - (II) An iron atom has a magnetic dipole moment of...Ch. 28 - (I) The following are some values of B and B0 for...Ch. 28 - (I) A large thin toroid has 285 loops of wire per...Ch. 28 - (II) An iron-core solenoid is 38 cm long and 1.8...Ch. 28 - Three long parallel wires are 3.5 cm from one...Ch. 28 - Prob. 52GPCh. 28 - Prob. 53GPCh. 28 - Prob. 54GPCh. 28 - Two long straight parallel wires are 15 cm apart....Ch. 28 - A rectangular loop of wire carries a 2.0-A current...Ch. 28 - Prob. 57GPCh. 28 - A long horizontal wire carries a current of 48 A....Ch. 28 - A square loop of wire, of side d, carries a...Ch. 28 - Prob. 60GPCh. 28 - Prob. 61GPCh. 28 - For two long parallel wires separated by a...Ch. 28 - Near the Earths poles the magnetic field is about...Ch. 28 - A 175-g model airplane charged to 18.0 mC and...Ch. 28 - Suppose that an electromagnet uses a coil 2.0 m in...Ch. 28 - Four hour long straight parallel wires located at...Ch. 28 - Prob. 67GPCh. 28 - A thin 12-cm-long solenoid has a total of 420...Ch. 28 - A 550-turn solenoid is 15 cm long. The current...Ch. 28 - Prob. 70GPCh. 28 - Prob. 71GPCh. 28 - Prob. 72GPCh. 28 - Prob. 73GPCh. 28 - Prob. 74GPCh. 28 - (II) A circular current loop of radius 15 cm...Ch. 28 - (III) A set of Helmholtz coils (see Problem 61,...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- (II) An iron-core solenoid is 38 cm long and 1.8 cm indiameter, and has 780 turns of wire. The magnetic fieldinside the solenoid is 2.2 T when 48 A flows in the wire.What is the permeability µ at this high field strength?arrow_forwardhollow conductor. The magnetic lux rUYrent passing through a hollow density B at the axis" will bě ? Infinite conductor.The magnetic u cylindrical HuX. Yadivs )zero O Finite but not ze magnitude of urrent Ornite but not zero, depends ero depends on ber nud on e of magnitude hermeability f the conductor current ant anarrow_forward(1) A 30.0-cm-long solenoid 1.25 cm in diameter is to produce a field of 4.65 mT at its center. How much current should the solenoid carry if it has 935 turns of the wire?arrow_forward
- 11 In Fig. 28-30, a charged particle enters a uniform magnetic field B with speed vo, moves through a half- circle in time To, and then leaves the field. (a) Is the charge positive or negative? (b) Is the final speed of the particle greater than, less than, or equal to vo? (c) If the initial speed had been 0.5vo, would the time spent in field B have been greater than, less than, or equal to T,? (d) Would the path have been a half-circle, more than a half-circle, or less than a half-circle? OF Figure 28-30 Question 11.arrow_forward8) Fig. 28-8 shows the cross-section of a hollow cylinder of inner radius a = 5 cm and outer radius b = 7 cm. A uniform current density j= 1 A/cm2 flows through the cylinder. Calculate the magnitude of the magnetic field at a distance d = 10 cm from the axis of the cylinder.arrow_forwardSuspending Suspending a wire with a current. A horizontal wire carries a current I1 = 80 A dc. A second parallel wire 20 cm below it (Fig. 28-7) must carry how much current I2 so that it doesn't fall due to gravity? The lower wire has a mass of 0.12 g per meter of length.arrow_forward
- 7) 210/31|1 y 6L →x d 2lo/3 A long wire carries a furrent 10/in the shown direction. A second wire of length 61 carrying a current Vin the direction as seen in the figure is placed at a di stan ce along y axis. The distance of the closest end of this wire from the first wire is d. What is the torque on the wire of length Sicalculated according to the axis defined by the long wire? 6L A) – (k) B)– (k) C) (k) D) 64oL (k) E) (Ê)arrow_forward(II) A rectangular loop of wire is placed next to a straight wire, as shown in Fig. 20-55. There is a current of 3.5 A in both wires. Deter- 3.5 A mine the magnitude and direction of the net force on the loop. 3.5 A 3.0 cm 5.0 cm FIGURE 20-55 Problem 31. 10.0 cm-arrow_forwardA vertical straight wire carrying an upward 7.0 A current exerts an attractive force per unit length of 1.2 x 10-4 N/m on a second parallel wire 28 cm away. Calculate the current (in A) in the second wire.arrow_forward
- length ofwire carrying a current i and bent intoa circular coil of one turn.the same length of wire has beenbent to give a coil of two turns, each ofhalf the original radius. (a) If Ba and Bbare the magnitudes of the magneticfields at the centers of the two coils,what is the ratio Bb/Ba? (b) What is theratio mb/ma of the dipole moment magnitudesof the coils?arrow_forwardwire 1n Y wire 2 K-- 1, - K.- 1,- A current carrying wire(wire-1) with i = 10 Amperes is placed at the origin on the Y-Z plane. Another current carrying wire(wire-2) with iz = 12 Amperes is placed I = 9 m distance apart on the Y-axis. The point Pa is l1 = 7 m from the wire-1. P (0, 7, -12), P2 (0, 7,0) and the point Pa (0, 7,8) are on the same line. The direction of the current is given in the figure. Step 1: Consider a wire-1 only. a) Calculate magnetic field at P x component Give your answer up to at least three significance digits. Tesla y component Give your answer up to at least three significance digits Tesla z component Give your answer up to at least three significance digits p to Tesla Calculate the magnetic field at P x component Give your answer up to at least three significance digits Tesla y component Give your answer up to at least three significance digits Tesla z component Give your answer up to at least three signiticance digits. Tesla Step 2:Consider both wires b) Now…arrow_forward(I) A single square loop of wire 22.0 cm on a side is placed with its face parallel to the magnetic field as in Fig. 20-34b. When 5.70 A flows in the coil, the torque on it is 0.325 m • N. What is the magnetic field strength?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
