Magnetic Force Between Two Parallel Conductors
... two long straight parallel wires separated by a distance a and carrying currents I1 and I2 in the same direction, let’s find the force each exerts on the other. The force on a length L of wire 1 is given by F1 = I1 LB2 , where B2 is the magnetic field produced by wire 2 at the site of wire 1. But th ...
... two long straight parallel wires separated by a distance a and carrying currents I1 and I2 in the same direction, let’s find the force each exerts on the other. The force on a length L of wire 1 is given by F1 = I1 LB2 , where B2 is the magnetic field produced by wire 2 at the site of wire 1. But th ...
Physics 100 Name: Electricity Notes, Part IV: Odds, Ends, and Lenz
... simple motor coil. Directly above or beneath the motor coil, there is a permanent magnet with labeled polarity. The top segment of the coil is labeled with an X. For each diagram, tell whether that coil segment (the X segment) will rotate to our left or to our right. 7. The diagram on the lower righ ...
... simple motor coil. Directly above or beneath the motor coil, there is a permanent magnet with labeled polarity. The top segment of the coil is labeled with an X. For each diagram, tell whether that coil segment (the X segment) will rotate to our left or to our right. 7. The diagram on the lower righ ...
Magnets and Magnetic Fields
... • Like poles repel and opposite poles attract. • The north pole of one magnet will attract the south pole of a different magnet • The north pole of one magnet will repel the north pole of a different magnet. • Poles are always present and cannot be separated. If you cut a magnet in half, two opposit ...
... • Like poles repel and opposite poles attract. • The north pole of one magnet will attract the south pole of a different magnet • The north pole of one magnet will repel the north pole of a different magnet. • Poles are always present and cannot be separated. If you cut a magnet in half, two opposit ...
Physics 2102 Spring 2002 Lecture 8
... one step further and given them an X-ray scope sighting system," notes director Russell. "These guns represent a whole new technology in weaponry that is still in its infancy, though a large-scale version exists in limited numbers on battleships and tanks. They have incredible range. They can pierce ...
... one step further and given them an X-ray scope sighting system," notes director Russell. "These guns represent a whole new technology in weaponry that is still in its infancy, though a large-scale version exists in limited numbers on battleships and tanks. They have incredible range. They can pierce ...
UNIT 2 CLASSIFICATION
... Now I can demonstrate this effect rather more dramatically with a different pair of magnets. Here I have a ferrite magnet. IT IS A MEGNETIC MATERIAL, ceramic in nature and CAN BE MAGNETIZED quite strongly. Here you see there are two rings, one ABOVE the other, the upper one is being supported BY THE ...
... Now I can demonstrate this effect rather more dramatically with a different pair of magnets. Here I have a ferrite magnet. IT IS A MEGNETIC MATERIAL, ceramic in nature and CAN BE MAGNETIZED quite strongly. Here you see there are two rings, one ABOVE the other, the upper one is being supported BY THE ...
Rad 160 – Radiographic Physics Unit 4 Magnetism I. Magnetism A
... 1. Magnetic dipoles – a magnetic moment created by the electron pair. 2. Magnetic domains – when many atoms are aligned to produce a larger magnetic field. (C & A, p 61-62) a. The earth spins around on an axis just like the electron pairs that spin around the nuclei of magnetic materials. b. The ear ...
... 1. Magnetic dipoles – a magnetic moment created by the electron pair. 2. Magnetic domains – when many atoms are aligned to produce a larger magnetic field. (C & A, p 61-62) a. The earth spins around on an axis just like the electron pairs that spin around the nuclei of magnetic materials. b. The ear ...
magnetism powerpoint
... Electromagnet: a coil of current-carrying wire with an iron core. The more turns, the stronger the magnet. Used in junkyards to ...
... Electromagnet: a coil of current-carrying wire with an iron core. The more turns, the stronger the magnet. Used in junkyards to ...
20.4 Force on Electric Charge Moving in a Magnetic Field The force
... The Earth’s magnetic field is similar to that of a bar magnet. Note that the Earth’s “North Pole” is really a south magnetic pole, as the north ends of magnets are attracted to it. ...
... The Earth’s magnetic field is similar to that of a bar magnet. Note that the Earth’s “North Pole” is really a south magnetic pole, as the north ends of magnets are attracted to it. ...
![L 28 Electricity and Magnetism [5]](http://s1.studyres.com/store/data/001468655_1-12c2495c0c6eb4c679cede08941ae4d1-300x300.png)
Force between magnets
Magnets exert forces and torques on each other due to the complex rules of electromagnetism. The forces of attraction field of magnets are due to microscopic currents of electrically charged electrons orbiting nuclei and the intrinsic magnetism of fundamental particles (such as electrons) that make up the material. Both of these are modeled quite well as tiny loops of current called magnetic dipoles that produce their own magnetic field and are affected by external magnetic fields. The most elementary force between magnets, therefore, is the magnetic dipole–dipole interaction. If all of the magnetic dipoles that make up two magnets are known then the net force on both magnets can be determined by summing up all these interactions between the dipoles of the first magnet and that of the second.It is always more convenient to model the force between two magnets as being due to forces between magnetic poles having magnetic charges 'smeared' over them. Such a model fails to account for many important properties of magnetism such as the relationship between angular momentum and magnetic dipoles. Further, magnetic charge does not exist. This model works quite well, though, in predicting the forces between simple magnets where good models of how the 'magnetic charge' is distributed is available.