Question

The direction of force on a moving electric charge in a magnetic field is (Select all that apply)

in the direction of the magnetic field |

in the directions of the charge |

perpendicular to the magnetic field |

perpendicular to the direction of the motion of the charge |

none of the above |

Answer #1

force on moving charge

= q()

and direction can find from The right hand rule

The right hand rule states that, to find the direction of the magnetic force on a positive moving charge, the thumb of the right hand point in the direction of v, the fingers in the direction of B, and the force (F) is directed perpendicular to the right hand palm.

so

The magnetic force on a free moving charge is perpendicular to both the velocity of the charge and the magnetic field with direction given by the right hand rule.

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