define magnetic field
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magnetic field magnetic field. 1  A field of force associated with changing electric fields, as when electric charges are in motion. Magnetic fields exert deflective forces on moving electric charges. 2  See magnetic field strength.
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- Freebase(0.00 / 0 votes)Rate this definition: Magnetic moment. The magnetic moment of a magnet is a quantity that determines the force that the magnet can exert on electric currents and the torque that a magnetic field will exert on it. A loop of electric current, a bar magnet, an electron, a molecule, and a planet all have magnetic moments.
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diamagnetism adj. 1  Of or relating to a substance that generates a magnetic field in the direction opposite to an externally applied magnetic field and is therefore repelled by it. 2  a property of certain materials of being repelled by both poles of a magnet, thus taking a position at right angles to the magnet’s lines of influence.
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Magnetism Magnetism, phenomenon associated with magnetic fields, which arise from the motion of electric charges. This motion can take many forms. It can be an electric current in a conductor or charged particles moving through space, or it can be the motion of an electron in an atomic orbital.
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magnetic The definition of magnetic is being attracted by magnetism, or very attractive. An example of something magnetic is a personality that attracts people; a magnetic personality. having the properties of a magnet: magnetic needle.
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Magnetism Main article: Magnetic field. The phenomenon of magnetism is mediated by the magnetic field. An electric current or magnetic dipole creates a magnetic field, and that field, in turn, imparts magnetic forces on other particles that are in the fields.ain article: Magnetic field. The phenomenon of magnetism is mediated by the magnetic field. An electric current or magnetic dipole creates a magnetic field, and that field, in turn, imparts magnetic forces on other particles that are in the fields.
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Electromagnet An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off.
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field magnetic field that portion of space about a magnet in which its action is perceptible. mantle field in radiation therapy, such as for malignant lymphoma, a circumscribed area of irradiation around the shoulders and chest, including the neck, clavicular regions, axillae, and mediastinum. See also under irradiation.
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How does the Sun's magnetic field work? Magnetic fields are created by things that are magnetic (like iron magnets) or by moving charged particles. A magnetic field is the description of the force a magnetic object exerts in the space surrounding the magnetic object. A force is a push or pull. To learn more about forces and magnetic fields, please visit The University of Colorado Physics 2000 website.
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What is magnetism? A magnetic field is the result of the motion of a charged particle or charged particles, and this field is generated in no other way. Any time a charged particle moves, it creates a magnetic field around its path of travel.
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- magnetic (comparative more magnetic, superlative most magnetic) Of, relating to, operating by, or caused by magnetism. a magnetic recorder; Having the properties of a magnet, especially the ability to draw or pull. Determined by earth's magnetic fields. magnetic north the magnetic meridian; Having an extraordinary ability to attract. He has a magnetic personality. John Donne she that had all magnetic force alone Having, susceptible to, or induced by, animal magnetism.
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Topic Overview In rare cases, generalized muscle weakness may be caused by another health problem, such as: 1  A problem with the minerals (electrolytes) found naturally in the body, such as low levels of potassium or sodium.  Infections, such as a urinary tract infection or a respiratory infection.
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Magnetism Magnetism is a class of physical phenomena that are mediated by magnetic fields. Electric currents and the magnetic moments of elementary particles give rise to a magnetic field, which acts on other currents and magnetic moments.
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magnetism Magnetic flux is defined in terms of the forces exerted by the magnetic field on electric charge. The forces can be described in terms of changes in flux with time [Eq. (1)], caused either by motion relative to the source or by changes in the source current, describing the effect of charge acceleration.
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magnetic Definition of magnetic. 1  1 : possessing an extraordinary power or ability to attract a magnetic personality. 2  2a : of or relating to a magnet or to magnetismb : of, relating to, or characterized by the earth's magnetismc : magnetized or capable of being magnetizedd : actuated by magnetic attraction.
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- magnetic (comparative more magnetic, superlative most magnetic) Of, relating to, operating by, or caused by magnetism. a magnetic recorder. Having the properties of a magnet, especially the ability to draw or pull. Determined by earth's magnetic fields. magnetic north the magnetic meridian; Having an extraordinary ability to attract. He has a magnetic personality. John Donne she that had all magnetic force alone Having, susceptible to, or induced by, animal magnetism. a magnetic sleep; Synonyms
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- The term electromagnetism is defined as the production of a magnetic field by current flowing in a conductor. We will need to understand electromagnetism in greater detail to understand how it can be used to do work.
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- The most common source of a magnetic field is an electric current loop. The motion of electric charges in a pattern produces a magnetic field and its associated magnetic force. Similarly, spinning objects, like the Earth, produce magnetic fields, sufficient to deflect compass needles.
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The Common Good Commenting on the many economic and social problems that American society confronts, Newsweek columnist Robert J. Samuelson once wrote: We face a choice between a society where people accept modest sacrifices for a common good or a more contentious society where group selfishly protect their own benefits..
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Magnet The north pole of a magnet is defined as the pole that, when the magnet is freely suspended, points towards the Earth's North Magnetic Pole in the Arctic. Since opposite poles (north and south) attract, the North Magnetic Pole is actually the south pole of the Earth's magnetic field.
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- The magnetic field at a point at a distance r on the equator of a magnet may be expressed as a series of terms of successively higher powers of 1/ r (the first term in the series being a term in r −3), and the higher powers decrease rapidly with increasing distance.
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magnetomotive force (magnetic potential) Magnetomotive force, also known as magnetic potential, is the property of certain substances or phenomena that gives rise to magnetic field s. Magnetomotive force is analogous to electromotive force or voltage in electricity. The standard unit of magnetomotive force is the ampere-turn (AT), represented by a steady, direct electrical current of one ampere (1 A) flowing in a single-turn loop of electrically conducting material in a vacuum . Sometimes a unit called the gilbert (G) is used to quantify magnetomotive force.
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Electromagnet An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off.Electromagnets usually consist of a large number of closely spaced turns of wire that create the magnetic field.he magnetic field created by an electromagnet is proportional to both the number of turns in the winding, N, and the current in the wire, I, hence this product, NI, in ampere-turns, is given the name magnetomotive force.
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- The magnetic field lines around a long wire which carries an electric current form concentric circles around the wire. The direction of the magnetic field is perpendicular to the wire and is in the direction the fingers of your right hand would curl if you wrapped them around the wire with your thumb in the direction of the current. The magnetic field of an infinitely long straight wire can be obtained by applying Ampere's law.
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Maple Glazed Sweet Potatoes Directions. 1  Place sweet potatoes in a large saucepan with water to cover them. 2  Preheat oven to 350 degrees F (175 degrees C). 3  When the sweet potatoes are cool, peel and cut them into large chunks. 4  In a small saucepan, melt butter, syrup, sugar and coconut together over a low heat. 5  Bake 5 to 7 minutes, until top is lightly browned. When the sweet potatoes are cool, peel and cut them into large chunks. 2  Arrange them in the prepared dish. 3  In a small saucepan, melt butter, syrup, sugar and coconut together over a low heat. 4  Cook for 3 to 5 minutes, stirring constantly. 5  Sprinkle mixture over sweet potatoes.
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Electromagnetism The magnetic field force produced by an electromagnet (called the magnetomotive force, or mmf), is proportional to the product (multiplication) of the current through the electromagnet and the number of complete coil “turns” formed by the wire.