A particle travels under the influence of electric and magnetic fields. In its point of view, the magnetic field points downward and the electric field points from left to right (both fields are perpendicular to the motion of the particle). If the direction of the particle did not change as it passes through this region, then a.) its velocity is the ratio of the magnitudes of the electric and magnetic fields, assuming it is positively charged. b.) its velocity is the ratio of the magnitudes of the electric and magnetic fields, assuming it is negatively charged. c.) the particle is uncharged.

A particle travels under the influence of electric and magnetic fields. In its point of view, the magnetic field points downward and the electric field points from left to right (both fields are perpendicular to the motion of the particle). If the direction of the particle did not change as it passes through this region, then a.) its velocity is the ratio of the magnitudes of the electric and magnetic fields, assuming it is positively charged. b.) its velocity is the ratio of the magnitudes of the electric and magnetic fields, assuming it is negatively charged. c.) the particle is uncharged.

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

Pr2. A very long, straight current-carrying wire is bent at the middle two different ways, so that it takes the shapes depicted in figures a) and b). Find the direction and magnitude of the magnetic field in both cases at the center C of the semicircle (of radius R = 10 cm), if the current flowing in the wire is I = 2 A. a) b) С.
Q4) suppose that an electron is in the presence of electromagnetic field. If the magnitude of fields varies with time as E=t i, and B=B, k, where Bo is constant, and i and k are the unit vector in the x and z direction. Find the trajectories of electron?
An alpha particle ( Helium nucleus) having a mass of 4 protons is shot into a magnetic field of 0.2 T at right angles to the field and moves in a circle of radius 20 cm. Find a) the momentum of the alpha particle b) its velocity c) kinetic energy.
6. In the velocity selector, what should be the direction of a magnetic field so that the particle will travel upwards (in the +y direction) undeflected?
Q1. Two straight wires carry current in the +z direction. The wires are parallel with spacing d as shown. Find the Magnetic field along the y-axis. I ->X
Can you answer problem 4? Can you also provide a short explanation for the answer you chose?
Pr2. A very long, straight current-carrying wire is bent at the middle two different ways, so that it takes the shapes depicted in figures a) and b). Find the direction and magnitude of the magnetic field in both cases at the center C of the semicircle (of radius R= 10 cm), if the current flowing in the wire is I = 2 A. а) b) C.
A particle is launched from the origin on the ground with an initial velocityv = (2.40 m/s) x+ (2.00 m/s) y. The particle falls freely under earth’sgravitational field.a. Find the angle at which the particle is launched at origin. (angle made topositive x axis).b. How far does the particle move in the x direction?c. What is the particle’s velocity at this time?d. How long it stays in the air
If a charged particle initially kept at rest experiences acceleration, which of the following statements is correct? I. The electric field must not be zero. II. The magnetic field must not be zero. III. The electric field may or may not be zero. IV. The magnetic field may or may not be zero.
A. downward and parabolic B. downward and circular C. upward, along a straight line D. upward and circular E. upward and parabolic