a.) The horizontal component of the earth's magnetic field at SBCC is about 5 E-5 T. Determine the value of the current in a wire that would produce this magnetic strength at a distance of 10 cm. (25-A) b.) A cardiac pacemaker can be affected by static magnetic fields as small as 1.7 mT. How close can a pacemaker wearer come to a long, straight wire carrying 20-A? (2.35 E-3 m = 2.35 mm) (generally a pretty safe distance) A c.) If we were in the lab I would show you that we could suspend 1-2-m long straight wire having a mass of 10.2g in the magnetic field produced by a set of horseshoe magnets when the wire carried a current of 18-A. Determine the magnetic field FORCE strength produced by the horseshoe magnets. Hint: do an FBD for the wire. (4.6 E-3 T) Current ..... 192 x 200-gi

a.) The horizontal component of the earth's magnetic field at SBCC is about 5 E-5 T. Determine the value of the current in a wire that would produce this magnetic strength at a distance of 10 cm. (25-A) b.) A cardiac pacemaker can be affected by static magnetic fields as small as 1.7 mT. How close can a pacemaker wearer come to a long, straight wire carrying 20-A? (2.35 E-3 m = 2.35 mm) (generally a pretty safe distance) A c.) If we were in the lab I would show you that we could suspend 1-2-m long straight wire having a mass of 10.2g in the magnetic field produced by a set of horseshoe magnets when the wire carried a current of 18-A. Determine the magnetic field FORCE strength produced by the horseshoe magnets. Hint: do an FBD for the wire. (4.6 E-3 T) Current ..... 192 x 200-gi

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter19: Magnetism

Section: Chapter Questions

Problem 28P: At a certain location, Earth has a magnetic field of 0.60 104 T, pointing 75 below the horizontal...

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Similar questions

The current through a circular wire loop of radius 10 cm is 5.0 A. (a) Calculate themagnetic dipole moment of the loop. (b) What is the torque on the loop if it is in a uniform 0.20-T magnetic field such that p and B are directed at 300 to each other? (C) For this position, what is the potential energy of the dipole?
At a certain location, Earth has a magnetic field of 0.60 104 T, pointing 75 below the horizontal in a north-south plane. A 10.0-m-long straight wire carries a 15-A current, (a) If the current is directed horizontally toward the east, what are the magnitude and direction of the magnetic force on tile wire? (b) What are the magnitude and direction of the force if the current is directed vertically upward?
An electron moving at 4.00103 m/s in a 1.25-T magnetic field experiences a magnetic force of 1.401016 N. What angle does the velocity of the electron make with the magnetic field? There are two answers.
(a) A DC power line for a light-rail system carries 1000 A at an angle of 30.0° to the Earth’s 5.00105-T field. What is the force on a 100-m section of this line? (b) Discuss practical concerns this presents, if any.
A particle’s path is bent when it passes through a region of non-zero magnetic field although its speed remains unchanged. This is very useful for “beam steering’’ in particle accelerators. Consider a proton of speed 4106m/s entering a region of uniform magnetic field 0.2 T over a 5-cm-wide region. Magnetic field is perpendicular to the velocity of the particle. By how much angle will the path of the proton be bent? (Hint: the particle comes out tangent to a circle.
Electrons in Earths upper atmosphere have typical speeds near 6.00 105 m/s. (a) Calculate the magnitude of Earths magnetic field if an electrons velocity is perpendicular to the magnetic field and its circular path has a radius of 7.00 102 m. (b) Calculate the number of times per second that an electron circles around a magnetic field line.
A cosmic-ray electron moves at 7.5 × 106 m/sinches perpendicular to Earth’s magnetic field at an altitude queer the field strength is 1.0 × 105T. What is the radius of the circular path the electron follows?
An electron is projected into a uniform magnetic field (0.5i+0.8k)T with a velocity of (3.0i+4.0j)106 m/s . What is the magnetic force on the electron?
(a) A cosmic ray proton moving toward the Earth at 5.00107m/s experiences a magnetic force of 1.701016N. What is the strength of the magnetic field it there is a 45° angle between it and the proton’s velocity? (b) Is the value obtained in part (a) consistent with the known strength of the Earth’s magnetic field on its surface? Discuss.
(a) Aircraft sometimes acquire small static charges, Suppose a supersonic jet has a 0.500C charge and flies due west at a speed of 660.m/s over Earth’s south magnetic pole, where the 8.00105T -T magnetic field points straight down into the ground, What are the direction and the magnitude of the magnetic force on the plane? fb) Discuss whether the value obtained in part (a) implies this is a significant or negligible effect,
(a) An oxygen16 ion with a mass at 2.661026kg travels at 5.00106m/s perpendicular to a 1.20T magnetic field, which makes it move in a circular arc with a 0.231-m radius. What positive charge is on the ion? (b) What is the radio of this charge to the charge of an electron? (c) Discuss why the radio found in (b) should be an integer.
, A proton, deuteron, and an alpha-particle ae all accelerated from rest through the same potential difference. They then enter the same magnetic field, moving perpendicular to it. Compute the ratios of the radii of their circular paths. Assume that md= 2wmp and ma= 4mp.