Magnetic Force Exerted on a Current Carrying Wire Magnetic force
... Magnetic Force Exerted on a Current Carrying Wire Magnetic force exerted on a current: The magnitude of the magnetic force FB on W that a magnetic field B exerts on a current I passing through a wire of length L is F B on W = ILBsinθ where θ is the angle between the directions of the B-field and the ...
... Magnetic Force Exerted on a Current Carrying Wire Magnetic force exerted on a current: The magnitude of the magnetic force FB on W that a magnetic field B exerts on a current I passing through a wire of length L is F B on W = ILBsinθ where θ is the angle between the directions of the B-field and the ...
Changes in Sea Travel
... Read the following descriptions to find out more about discoveries that changed sea travel during this time and allowed for exploration. Magnetic Compass A magnetic compass has a needle mounted in a way that allows it to turn freely. Its needle always lines up with Earth’s magnetic field and points ...
... Read the following descriptions to find out more about discoveries that changed sea travel during this time and allowed for exploration. Magnetic Compass A magnetic compass has a needle mounted in a way that allows it to turn freely. Its needle always lines up with Earth’s magnetic field and points ...
The (Integer) Quantum Hall Effect
... One would expect, naively, that placing many charges (say, electrons) in a metal would cause them to interact very strongly through the Coulomb force, and that the resulting energy eigenstates would look very different from the single-particle energy eigenstates. Landau showed the remarkable result ...
... One would expect, naively, that placing many charges (say, electrons) in a metal would cause them to interact very strongly through the Coulomb force, and that the resulting energy eigenstates would look very different from the single-particle energy eigenstates. Landau showed the remarkable result ...
EECS 215: Introduction to Circuits
... dH is in the r–z plane , and therefore it has components dHr and dHz z-components of the magnetic fields due to dl and dl’ add because they are in the same direction, but their r-components cancel Hence for element dl: ...
... dH is in the r–z plane , and therefore it has components dHr and dHz z-components of the magnetic fields due to dl and dl’ add because they are in the same direction, but their r-components cancel Hence for element dl: ...
EECS 215: Introduction to Circuits
... dH is in the r–z plane , and therefore it has components dHr and dHz z-components of the magnetic fields due to dl and dl’ add because they are in the same direction, but their r-components cancel Hence for element dl: ...
... dH is in the r–z plane , and therefore it has components dHr and dHz z-components of the magnetic fields due to dl and dl’ add because they are in the same direction, but their r-components cancel Hence for element dl: ...
EARTH`S MAGNETIC FIELD
... geographic south pole (see Magnetic South Pole). This makes the compass usable for navigation. The cause of the field can be explained by dynamo theory. A magnetic fieldextends infinitely, though it weakens with distance from its source. The Earth's magnetic field, also called the geomagnetic field ...
... geographic south pole (see Magnetic South Pole). This makes the compass usable for navigation. The cause of the field can be explained by dynamo theory. A magnetic fieldextends infinitely, though it weakens with distance from its source. The Earth's magnetic field, also called the geomagnetic field ...
The Magnetic Field (B)
... Can the magnetic force change the kinetic energy of a particle? Can the magnetic force change the velocity of a particle? Can the magnetic force accelerate a particle? Can the magnetic force change the momentum of a particle? [B]: tesla (T) = (N s)/(C m) = N/(A m) ...
... Can the magnetic force change the kinetic energy of a particle? Can the magnetic force change the velocity of a particle? Can the magnetic force accelerate a particle? Can the magnetic force change the momentum of a particle? [B]: tesla (T) = (N s)/(C m) = N/(A m) ...
Electric and Magnetic Forces Study Guide for Test 2014
... Uncharged vs. positively charged vs. negatively charged objects Electric Repel vs. Magnetic repel Electric attraction vs. magnetic attraction ...
... Uncharged vs. positively charged vs. negatively charged objects Electric Repel vs. Magnetic repel Electric attraction vs. magnetic attraction ...
Slideshow
... materials NOT magnetic because electron pairs cancel out their magnetic fields ► Iron, nickel, and cobalt – have atoms with unpaired electrons whose magnetic fields are not entirely canceled out – so have magnetic properties ► Iron has four unpaired electrons so each iron atom is a tiny magnet ...
... materials NOT magnetic because electron pairs cancel out their magnetic fields ► Iron, nickel, and cobalt – have atoms with unpaired electrons whose magnetic fields are not entirely canceled out – so have magnetic properties ► Iron has four unpaired electrons so each iron atom is a tiny magnet ...
Ferromagnetism
Not to be confused with Ferrimagnetism; for an overview see Magnetism.Ferromagnetism is the basic mechanism by which certain materials (such as iron) form permanent magnets, or are attracted to magnets. In physics, several different types of magnetism are distinguished. Ferromagnetism (including ferrimagnetism) is the strongest type: it is the only one that typically creates forces strong enough to be felt, and is responsible for the common phenomena of magnetism in magnets encountered in everyday life. Substances respond weakly to magnetic fields with three other types of magnetism, paramagnetism, diamagnetism, and antiferromagnetism, but the forces are usually so weak that they can only be detected by sensitive instruments in a laboratory. An everyday example of ferromagnetism is a refrigerator magnet used to hold notes on a refrigerator door. The attraction between a magnet and ferromagnetic material is ""the quality of magnetism first apparent to the ancient world, and to us today"".Permanent magnets (materials that can be magnetized by an external magnetic field and remain magnetized after the external field is removed) are either ferromagnetic or ferrimagnetic, as are other materials that are noticeably attracted to them. Only a few substances are ferromagnetic. The common ones are iron, nickel, cobalt and most of their alloys, some compounds of rare earth metals, and a few naturally-occurring minerals such as lodestone.Ferromagnetism is very important in industry and modern technology, and is the basis for many electrical and electromechanical devices such as electromagnets, electric motors, generators, transformers, and magnetic storage such as tape recorders, and hard disks.