As seen in previous chapters, any object with electric charge, stationary or moving, other than the charged object that created the field, experiences a force in an electric field. Also, any object with electric charge, stationary or moving, can create an electric field (Chapter 22). Similarly, an elec- tric current or a moving electric charge, other than the cur- rent or charge that created the field, experiences a force in a magnetic field (Chapter 28), and an electric current creates a magnetic field (Section 29.1). (a) To understand how a moving charge can also create a magnetic field, consider a particle with charge q moving with velocity v. Define the position vector = rî leading from the particle to some location. Show that the magnetic field at that location is B Mo qv x î r2 (b) Find the magnitude of the magnetic field 1.00 mm to the side of a proton moving at 2.00 × 107 m/s. (c) Find the magnetic force on a second proton at this point, moving with the same speed in the opposite direction. (d) Find the electric force on the second proton.

As seen in previous chapters, any object with electric charge, stationary or moving, other than the charged object that created the field, experiences a force in an electric field. Also, any object with electric charge, stationary or moving, can create an electric field (Chapter 22). Similarly, an elec- tric current or a moving electric charge, other than the cur- rent or charge that created the field, experiences a force in a magnetic field (Chapter 28), and an electric current creates a magnetic field (Section 29.1). (a) To understand how a moving charge can also create a magnetic field, consider a particle with charge q moving with velocity v. Define the position vector = rî leading from the particle to some location. Show that the magnetic field at that location is B Mo qv x î r2 (b) Find the magnitude of the magnetic field 1.00 mm to the side of a proton moving at 2.00 × 107 m/s. (c) Find the magnetic force on a second proton at this point, moving with the same speed in the opposite direction. (d) Find the electric force on the second proton.

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)...

See similar textbooks

Similar questions

An electric field of 1.51 kV/m and a perpendicular magnetic field of 0.413 T act on a moving electron to produce no net force. What is the electron's speed?
In a TV set, electrons are accelerated from rest through a PD of 15 kV. The electrons then pass through a 0.35-T magnetic field that deflects them to the appropriate spot on the screen. Find the magnitude of the maximum force that an electron can experience.
How is the magnetic field due to a straight current carrying wire affected when the current is (a) decreased (b) reversed?
The force on a charged particle from a static electric field is F = qÈ and for a static magnetic field is F = qux B. Briefly describe the effect on a charged particle from the application of each of these forces separately.
In a TV set, electrons are accelerated from rest through a PD of 15 kV. The electrons then pass through a 0.35-T magnetic field that deflects them to the appropriate spot on the screen. Find the magnitude of the maximum force that an electron can experience.
When is the force experience by a current carrying conductor placed in a magnetic field larges?
(a) A 0.740-m-long section of cable carrying current to a car starter motor makes an angle of 40° with the Earth's 5.5 x 10-5 T field. What is the current when the wire experiences a force of 7.30 x 10-³ N? Submit Answer Tries 0/5 (b) If you run the wire between the poles of a strong horseshoe magnet, subjecting 4.00 cm of it to a 1.05-T field, what force is exerted on this segment of wire? Submit Answer Tries 0/5