12 Figure 32-26 shows foursteel bars; three are perma-nent magnets. One of the polesis indicated. Through experi-ment we find that ends a and dattract each other, ends c and frepel, ends e and h attract, andends a and h attract. (a) Whichends are north poles? (b)Which bar is not a magnet?Figure 32-26 Question 12.

a) End a and end e attracts to each other. Hence end e must be South Pole. The other end which is…

Answered: 12 Figure 32-26 shows four steel bars;…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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by the arc? 29 SSM In Fig. 29-57, four long straight wires are perpendicular to the page, and their cross sections form a square of edge length a = 20 cm. The currents are out of the page in wires 1 and 4 and into the page in wires 2 and 3, and each wire carries 20 A. In unit-vector notation, what is the net magnetic field at the square's center? Figure 29-57 Problems 29, 37, and 40. (L- (1 -X
of the page after being rotated 90° counterclockwise as indicated? 21 GO Figure 29-49 shows two very long straight wires (in cross sec- tion) that each carry a current of 4.00 A directly out of the page. Distance d₁ 6.00 m and distance d₂ = 4.00 m. What is the magnitude of the net magnetic field at point P, which lies on a perpendicular bisec- tor to the wires? = 1 I 1 1 Figure 29-49 Problem 21. llal sections. 0 at the -26 radial indicat- pendic the arc that ca the ce magn cal sca the ar
rectilinear conductor with current 8 A and length 25 cm, is located in the homogeneous magnetic field and forms the alpha angle with the induction lines. The magnetic force acting on the conductor has the maximum value when the alpha angle is: a) narrow b) wide c) zero d) 90 °
An electron follows a helical path in a uniform magnetic field given by B=(161-42-34 k) mT. At time t = 0, the electron's velocity is given by = (211-311+58 k) m/s. (a) What is the angle between and B? The electron's velocity changes with time. (b) Do its speed changes with time? (c) Do its angle changes with time? (d) What is the radius of the helical path? (a) Number i Units
11 In Fig. 29-42, two long straight wires are perpendicular to the page and = 0.75 cm. separated by distance d₁ Wire 1 carries 6.5 A into the page. What are the (a) magnitude and (b) direction (into or out of the page) of the current in wire 2 if the net magnetic field due to the two currents is zero at point P lo- cated at distance d₂ = 1.50 cm from Figure 29-42 Problem 11. wire 2? ata of bot Wire 10 Wire 20- P has mA ne me ma 90 25 ry th
2 - A filed is given as B = xyzî+ ay?z} – Bz?yk Could this field be a magnetic field? If yes, what is the relation between a and B?
A horizontal current-carrying wire that is perpendicular to the plane of the paper is placed in a uniform magnetic field of magnitude 2.2 mT that is parallel to the plane of the paper and points down. At the distance 1.0 cm to the right of the wire, the total magnetic field is zero.
CHAPTER 32/ THE I 746 PROBLEMS 1. An electron in a uniform magnetic field has a velocity ý = (40 km/s)î + (35 km/s)j. It experiences a force F = (-4.2 fN)î + (4.8 fN)j. If B, = 0, calculate the magnetic %3D %3D field.
A wire carrying a steady 10 A current (dc), has a length of 10 cm between the pole faces of a magnet. The wire is at an angle of 30 degrees to the magnetic field. The magnetic field is uniform at 1 Tesla. Ignore the field beyond the pole pieces. (i) Find the magnitude on the current carrying wire due to the external magnetic field. (ii) Find the direction of the magnetic force.
Calculate the magnetic field and vector magnetic potential on axis resulting form z-directed magnetic dipole located at z=z0

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