Essential University Physics (3rd Edition)
3rd Edition
ISBN: 9780134202709
Author: Richard Wolfson
Publisher: PEARSON
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Question
Chapter 26, Problem 75P
(a)
To determine
The magnetic field strength near the conductor surface but not near the edges.
(b)
To determine
The magnetic field strength far from the conductor.
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28.37 A closed curve encircles several conductors. The line integral
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Chapter 26 Solutions
Essential University Physics (3rd Edition)
Ch. 26.2 - The figure shows a proton in a magnetic field. (1)...Ch. 26.3 - A proton of the same energy as the electron in...Ch. 26.4 - Prob. 26.4GICh. 26.5 - Prob. 26.5GICh. 26.6 - Prob. 26.6GICh. 26.7 - Which of the following best describes the...Ch. 26.8 - The figure shows three parallel wires carrying...Ch. 26 - A charged particle moves through a region...Ch. 26 - An electron moving with velocity v through a...Ch. 26 - A magnetic field points out of this page. Will a...
Ch. 26 - Do particles in a cyclotron gain energy from the...Ch. 26 - An electron and a proton moving at the same speed...Ch. 26 - Two identical particles carrying equal charge are...Ch. 26 - In what two senses does a current loop behave like...Ch. 26 - Prob. 8FTDCh. 26 - Do currents in the same direction attract or...Ch. 26 - If a current is passed through an unstretched...Ch. 26 - Figure 26.38 shows some magnetic field lines...Ch. 26 - Prob. 12FTDCh. 26 - Prob. 13FTDCh. 26 - Prob. 14FTDCh. 26 - Find (a) the minimum magnetic field needed to...Ch. 26 - An electron moving at right angles to a 0.10-T...Ch. 26 - Find the magnitude of the magnetic force on a...Ch. 26 - The magnitude of Earths magnetic field is about...Ch. 26 - A velocity selector uses a 60-mT magnetic field...Ch. 26 - Prob. 20ECh. 26 - How long does it take an electron to complete a...Ch. 26 - Radio astronomers detect electromagnetic radiation...Ch. 26 - Prob. 23ECh. 26 - Two protons, moving in a plane perpendicular to a...Ch. 26 - Find the magnitude of the force on a 65.5-cm-long...Ch. 26 - A wire carrying 15 A makes a 25 angle with a...Ch. 26 - Youre on a team performing a high-magnetic-field...Ch. 26 - A wire with mass per unit length 75 g/m runs...Ch. 26 - A wire carries 6.71 A. You form it into a...Ch. 26 - A single-turn wire loop is 2.0 cm in diameter and...Ch. 26 - A 2.2-m-long wire carrying 3.5 A is wound into a...Ch. 26 - Whats the current in a long wire if the magnetic...Ch. 26 - In standard household wiring, parallel wires about...Ch. 26 - Earths magnetic dipole moment is 8.01022 Am2. Find...Ch. 26 - A single-turn square wire loop 18.0 cm on a side...Ch. 26 - An electric motor contains a 250-turn circular...Ch. 26 - The line integral of the magnetic field on a...Ch. 26 - The magnetic field shown in Fig. 26.39 has uniform...Ch. 26 - Number 12 gauge wire, commonly used in household...Ch. 26 - Prob. 40ECh. 26 - A superconducting solenoid has 3300 turns per...Ch. 26 - A particle carrying a 50-C charge moves with...Ch. 26 - Jupiter has the strongest magnetic field in our...Ch. 26 - A proton moving with velocity v1 = 3.6 104 m/s...Ch. 26 - A simplified model of Earths magnetic field has it...Ch. 26 - A beam of electrons moving in the x-direction at...Ch. 26 - Show that the orbital radius of a charged particle...Ch. 26 - Prob. 48PCh. 26 - Prob. 49PCh. 26 - Prob. 50PCh. 26 - Youre designing a prosthetic ankle that includes a...Ch. 26 - A 20-cm-long conducting rod with mass 18 g is...Ch. 26 - Prob. 53PCh. 26 - Prob. 54PCh. 26 - A simple electric motor consists of a 220-turn...Ch. 26 - Nuclear magnetic resonance (NMR) is a technique...Ch. 26 - A wire carrying 1.5 A passes through a 48-mT...Ch. 26 - Your company is developing a device incorporating...Ch. 26 - A single piece of wire carrying current I is bent...Ch. 26 - You and a friend get lost while hiking, so your...Ch. 26 - Part of a long wire carrying current I is bent...Ch. 26 - Prob. 62PCh. 26 - A long, straight wire carries a 25-A current. A...Ch. 26 - A long conducting rod of radius R carries a...Ch. 26 - A long, hollow conducting pipe of radius R carries...Ch. 26 - A solenoid used in a plasma physics experiment is...Ch. 26 - A solenoid used in a plasma physics experiment is...Ch. 26 - You have 10 m of 0.50-mm-diameter copper wire and...Ch. 26 - Prob. 69PCh. 26 - The largest lightning strikes have peak currents...Ch. 26 - A coaxial cable (see Fig. 26.47) consists of a...Ch. 26 - Prob. 72PCh. 26 - Prob. 73PCh. 26 - A circular wire loop of radius 15 cm and...Ch. 26 - Prob. 75PCh. 26 - A long, hollow conducting pipe of radius R and...Ch. 26 - A solid conducting wire of radius R runs parallel...Ch. 26 - A disk of radius a carries uniform surface charge...Ch. 26 - Youre developing a system to orient an orbiting...Ch. 26 - Prob. 80PCh. 26 - Prob. 81PCh. 26 - Find an expression for the magnetic field at the...Ch. 26 - Prob. 83PCh. 26 - A magnetic dipole = is on the axis of a circular...Ch. 26 - Prob. 85PCh. 26 - Derive Equation 26.20 by considering the current...Ch. 26 - Your roommate is sold on magnet therapy, a sham...Ch. 26 - A toroid is a solenoid-like coil bent into a...Ch. 26 - A toroid is a solenoid-like coil bent into a...Ch. 26 - A toroid is a solenoid-like coil bent into a...Ch. 26 - A toroid is a solenoid-like coil bent into a...
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- A long, straight wire carries a 13.0 A current. An electronis fired parallel to this wire with a velocity of 250 km/s in the samedirection as the current, 2.00 cm from the wire What should be the magnitude and direction of a uniform electric field that will allow the electron to continue to travel parallel to the wire?arrow_forwardQ7. A solid conductor of circular cross section. If the radius a = 1 mm, the conductor axis lies on the z axis, and the total current in the a, direction is 20 A, find: (a) Ho at r= 0.5mm; (b) Bo at r= 0.8 mm; (c) the total magnetic flux per unit length inside the conductor; (d) the total flux for r< 0.5 mm; (e) the total magnetic flux outside the conductor.? -0.8 0.5 I=20A -------------arrow_forwardYou want to build a giant solenoid of one layer of tightly-wrapped 12-gauge copper wire (diameter is 0.2032 mm). It is to be 3.5 meters tall and square in shape with 0.75-m long sides. In order to achieve a 150-mT field inside of the solenoid how much current will it need to draw?arrow_forward
- A total current of 88 mA flows through an infinitely long cylinderical conductor of radius r = 6 cm which has an infinitely long cylindrical hole through it with a diameter equal to r centered at along the x-axis as shown. 2 y T. X What is the magnitude of the magnetic field at a distance of 19 cm along the positive - axis? The permeability of free space is 4 π x 107T m/A. Assume the current density is constant throughout the conductor. Answer in units of T. Answer in units ofarrow_forward. A uniform magnetic field is directed normal to the plane of a wire that has been formed into 6a circular ring of radius, r = 3.1 cm. The magnetic field is uniform in space, but changeswith time. The resistance of this ring is R = 2.0 Ω. A steady current of i = 2.5 mA flowsthrough the wire. How fast is the magnetic field changing?arrow_forwardA long vertical wire carries an unknown current. Coaxial with the wire is a long cylindrical conducting surface that carries a current of 30 mA upward. The cylindrical surface has a radius of 3 mm. If the magnetic field at a point 5.0 mm from the wire has the magnitude of 1.0 µT and is directed counterclockwise as viewed from above, what is the current in the wire? Enter result as positive if it is upward and negative if it is downward.arrow_forward
- The accompanying figure shows a cross-section of a long, hollow, cylindrical conductor of inner radius r₁ = 3.5 cm and outer radius 72 = 5 cm. A 41-A current distributed uniformly over the cross-section flows into the page. Calculate the magnetic field at r = 1.5 cm, r = 4 cm, and r 8.5 cm. Hints r₁ 12 a. Magnetic field at r= 1,5 cm is (a). b. Magnetic field at r = 4 cm is (C). (b). c. Magnetic field at r = 8.5 cm is T. Additional hint for T. Additional hint for T. Additional hint for Use the "E" notation to enter your answer in scientific notation. For example, to enter 3.14 × 10-¹2, enter "3.14E- 12".arrow_forwardA cylindrical wire carries a steady current density modeled as J(r) = Cr², where ris radial distance from 1.5 mm. If 15.0 C of charge flows through the wire in 5.0 s, center of the wire. The radius of the wire is R determine C.arrow_forwardMagnetic flux density is the amount of flux passing through a defined area that is perpendicular to the direction of the flux while Magnetic flux is the amount of magnetic field (or the number of lines of force) produced by a magnetic source. (Note 1Tesla= 1Wb/m ) a) If you are to determine the flux density of a rectangular magnetic pole with face having dimensions of 200mm and 100mm. assuming the total flux emerging from the magnetic pole is 150µWb, what would be the flux density in Tesla? b) If the emerging flux of the pole is changed to 100µWb what will be the resultant density? c) When the dimensions of the magnetic pole are changed to 10m and 5m what will be the new density? d) What would happen if the magnetic pole is changed to square?arrow_forward
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