phsics

A charged particle is moving in a uniform magnetic field. Which of the following statements concerning the magnetic force exerted on the particle is false?

A) It does not change the kinetic energy of the particle.
B) It can act only on a particle in motion.
C) It increases the speed of the particle.
D) It changes the velocity of the particle.
E) It does no work on the particle.

What is your thinking on this? The magnetic force acts perpendicular to the path of motion.

answer is c

D) it changes the velocioty of the particle, because to find the velocity we need to know the mass, the gravational pull and the heigh of the particle (potential energy) and if any one of these things change then the velocity also changes. And because the magnetic force is acting on the partical the gravational pull would change meaning the veolcity changes.

  1. 👍 0
  2. 👎 0
  3. 👁 227
asked by benton

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physical Science

    The frequency of circular motion for a charged particle moving around in the presence of a uniform magnetic field does not depend on ... a)The radius of the circle b)The mass of the particle c)The charge of the particle d)The

    asked by Stephanie on March 13, 2010
  2. physics

    Indicate true or false in each of the following statements: 1. A static magnetic field can do work on a current carrying wire when the current in the wire is perpendicular to the field. 2. The time required for a charged particle

    asked by Sandhya on April 9, 2008
  3. Physics

    The frequency of circular motion for a charged particle moving around in the presence of a uniform magnetic field does not depend on ... The radius of the circle The mass of the particle The charge of the particle The magnitude of

    asked by mm. on March 15, 2010
  4. Physics

    The frequency of circular motion for a charged particle moving around in the presence of a uniform magnetic field does not depend on ... a)The radius of the circle b)The mass of the particle c) The charge of the particle d) The

    asked by Johnny on March 13, 2010
  5. manetism help!

    A charged particle with charge q is moving with speed v in a uniform magnetic field. A second identical charged particle is moving with speed 2v perpendiculuar to the same magnetic field. The time to complete one full circular

    asked by james on December 17, 2013
  6. magnetism

    In earlier learning sequences we described how a static magnetic field cannot change the speed (and therefore kinetic energy) of a free charged particle. A changing magnetic field can, and this is one way particle beams are

    asked by manu on December 3, 2013
  7. eletromagnets

    In earlier learning sequences we described how a static magnetic field cannot change the speed (and therefore kinetic energy) of a free charged particle. A changing magnetic field can, and this is one way particle beams are

    asked by BJ on December 5, 2013
  8. physics

    In earlier learning sequences we described how a static magnetic field cannot change the speed (and therefore kinetic energy) of a free charged particle. A changing magnetic field can, and this is one way particle beams are

    asked by J.O on December 5, 2013
  9. Physics

    A charged particle is moving downward with an initial speed of 5 × 106m/s when it encounters a uniform magnetic field that points east to west. (a) If the initial force on the particle is to the north, is the particle positive or

    asked by Lindsey on March 21, 2013
  10. magnetism

    A charged particle with charge q is moving with speed v perpendicular to a uniform magnetic field. A second identical charged particle is moving with speed 2v perpendiculuar to the same magnetic field. The time to complete one

    asked by colin on December 18, 2013

More Similar Questions