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what is the difference between magnetic field and magnetic force?

thanks!

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  • 10 years ago
    Favourite answer

    The purpose of a field is to describe the effects of a force purely based on the source of the effect. A simpler example of a field is an electric field. However, still in that case, the force depends both on the source and the object affected by the force.

    F = kq1q2/r^2.

    To simplify things, we define the field based on all the information we have about the source, so

    E = kq1/r^2

    Then, when we know q2, if we have already calculated E, it is simpler to calculate the force.

    F = Eq2

    That is helpful, because sometimes it is more complicated to calculate E than in this example. It might arise from multiple charges, even a practically uniform distribution of charges. We'd like to calculate E once and be able to apply it to different values of q2.

    Magnetic field is more complicated, because it depends on both the charge and the velocity of the affected particle. Still the idea is the same. Solve for the magnetic field B based on the properties of the source. Then the rule to find the force is

    F = qv x B

    Using only q and v, which are properties of the affected particle, and B.

  • ?
    Lv 4
    5 years ago

    Magnetic Forces Definition

  • 10 years ago

    There is not so much different between magnetic field and magnetic force. Actually they both are interrelated to each other. An imaginary area formed by a magnetic substance around itself and which affects other substances to pull themselves inside and inside the magnetic area like attracting is known as Magnetic Field. While another substance entered in the magnetic field feels an attracting force on itself this force is known as Magnetic Force.

    Source(s): Just think!!!
  • 10 years ago

    Magnetic Force:

    Magnetic force means the force exerted by a magnet on other magnet or magnetic substances.

    This is measured in newtons (N).

    Magnetic Field:

    When a magnet is kept at a place, the space around it gets modified and it becomes a seat of energy. If another magnet is brought into this space, it is acted upon by a force due to energy. Then the space around the magnet is said to be associated with a field known as magnetic field.

    If a magnetic material like iron of nickel is kept in that space of the field a magnetic induction force acts on it. Thus a magnetic field can be defined as that which can exert a magnetic force and can produce magnetic induction in the matter placed in it.

    Simply, magnetic field means the region around a magnet where the magnetic force can be felt.

    The magnet induction is measured in tesla (T) or Wb/m^2 or N/A.m

  • 10 years ago

    Magnetic field is the area covered by magnetic force.

    Magnetic force is the power of the magnetic field.

  • ?
    Lv 6
    10 years ago

    Magnetic field is defined theoretically as the force acting on a unit north pole,but free magnetic poles do not exist so another definition is based on lines of force.The field at a given point is defined as the No. of lines of force per unit area normal to the direction of the field,this is also called Flux per unit area.Force is defined by Coulombs Law of Magnetism,similar to electric field.This is important to note that the absence of free magnetic poles means the magnetic lines of force are closed curves.In terms of Gauss theorem

    Div.B=0

    Ivan

  • 10 years ago

    The field is the area in which there is magnetic influence and force is the level or strength of magnetism within the field.

  • 10 years ago

    It's important to understand the difference betwen the strength of a field and the strength of the force it produces.

    Take gravity as an easy example. The gravitational field may be g=9.81N/kg, but the gravitational force (in newtons) on an object depends both on its mass and g: W=mg

    For magnetism, we don't have anything as convenient as mass and kg. But we can apply the same idea.

    E.g. you have a magnetic field of 5T, you can get different size magnetic forces. A wire carrying 2A will experience twice the magnetic force as a wire carrying 1A (other factors being the same).

    (Force/unit length of wire) = BI)

    Hope that helps.

    The magnetic force is measured in newtons and depends on the

  • 8 years ago

    I do not really care!!!!!!!!!!!!!!!

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