1 PHYS:1200 LECTURE 27 — ELECTRICITY AND MAGNETISM (5
... and a south pole that cannot be separated. Like poles of two magnets repel each other and unlike poles attract. The magnetic field pattern for a bar magnet is shown as the diagram on the right above. The lines of magnetic field (we say “lines” even though they can be curved) always begin on a nor ...
... and a south pole that cannot be separated. Like poles of two magnets repel each other and unlike poles attract. The magnetic field pattern for a bar magnet is shown as the diagram on the right above. The lines of magnetic field (we say “lines” even though they can be curved) always begin on a nor ...
PDF Format
... Components of the Solar System • The Sun – The Sun is a star, a ball of incandescent gas whose output is generated by nuclear reactions in its core – Composed mainly of hydrogen (71%) and helium (27%), it also contains traces of nearly all the other chemical elements – It is the most massive object ...
... Components of the Solar System • The Sun – The Sun is a star, a ball of incandescent gas whose output is generated by nuclear reactions in its core – Composed mainly of hydrogen (71%) and helium (27%), it also contains traces of nearly all the other chemical elements – It is the most massive object ...
Unit 21 Electromagnetism
... There is a stronger field on one side of the wire at A, since all the magnetic field lines are acting in the same direction. At B, the magnetic field lines of the current oppose those of the magnet, making the combined field weaker. A force then acts on the wire from the stronger field to the weaker ...
... There is a stronger field on one side of the wire at A, since all the magnetic field lines are acting in the same direction. At B, the magnetic field lines of the current oppose those of the magnet, making the combined field weaker. A force then acts on the wire from the stronger field to the weaker ...
Formation of the Solar System
... Similarly, particles which are traveling north are as common as those going south. As these particles collide, their velocities average out, causing the cloud to flatten into a disk. The cloud continues to collapse because of gravity, and to spin faster because of the conservation of angular momentu ...
... Similarly, particles which are traveling north are as common as those going south. As these particles collide, their velocities average out, causing the cloud to flatten into a disk. The cloud continues to collapse because of gravity, and to spin faster because of the conservation of angular momentu ...
Magnetism
... associated with electric charges in motion. There are two kinds of electron motion in the atom: Electron revolving in its orbit. This produces a weak ...
... associated with electric charges in motion. There are two kinds of electron motion in the atom: Electron revolving in its orbit. This produces a weak ...
23. Magnetic fields and materials
... The answer to this question varies from material to material, depending upon its detailed electronic orbital structure. The first property — Lenz’s law on the orbital scale — plays some role in all materials. In many cases, this is the end of the story. Such materials are called diamagnetic. A diama ...
... The answer to this question varies from material to material, depending upon its detailed electronic orbital structure. The first property — Lenz’s law on the orbital scale — plays some role in all materials. In many cases, this is the end of the story. Such materials are called diamagnetic. A diama ...
magnetic circuit with air gap
... increase so the reluctance of the air gap decrease. The flux density Bg < Bc, Bc is the flux density in the core. If the air gaps is small, the fringing effect can be neglected. So ...
... increase so the reluctance of the air gap decrease. The flux density Bg < Bc, Bc is the flux density in the core. If the air gaps is small, the fringing effect can be neglected. So ...
Electricity and Magnetism
... Remember that unmagnetised iron, steel, cobalt and nickel objects will be attracted to either pole of a magnet. This means you can only show that an object is a magnet if it repels a known magnet. ...
... Remember that unmagnetised iron, steel, cobalt and nickel objects will be attracted to either pole of a magnet. This means you can only show that an object is a magnet if it repels a known magnet. ...
engineering physics ii magnetic materials
... to its random orientation some magnetic moments get cancelled and the materials possess very less magnetization in it. Effect of external field When an external field is applied, the magnetic moments of individual molecules reorient itself along the direction of the magnetic field and the material i ...
... to its random orientation some magnetic moments get cancelled and the materials possess very less magnetization in it. Effect of external field When an external field is applied, the magnetic moments of individual molecules reorient itself along the direction of the magnetic field and the material i ...
magnetic field
... The vectors L and point in opposite directions. Because the electron is negatively charged Quantum physics indicates that angular momentum is quantized. ...
... The vectors L and point in opposite directions. Because the electron is negatively charged Quantum physics indicates that angular momentum is quantized. ...
Campus: Elementary Author(s): Derden, Edmond, Bryant, Spurgers
... which creates a miniature solar system on the playground. This will require coordination among all third grade teachers and among the student teams responsible for the creation of each individual part of the Solar System. Assign students to teams responsible for researching and creating a multi-part ...
... which creates a miniature solar system on the playground. This will require coordination among all third grade teachers and among the student teams responsible for the creation of each individual part of the Solar System. Assign students to teams responsible for researching and creating a multi-part ...
our solar system?
... •! Elements that formed planets were made in stars and then recycled through interstellar space ...
... •! Elements that formed planets were made in stars and then recycled through interstellar space ...
Magnetic Field - Purdue Physics
... upward through the loop and decreases with time The magnetic field produced by the induced emf must oppose the change in flux Therefore, the induced magnetic field must be downward and the induced current will be counterclockwise Section 21.3 ...
... upward through the loop and decreases with time The magnetic field produced by the induced emf must oppose the change in flux Therefore, the induced magnetic field must be downward and the induced current will be counterclockwise Section 21.3 ...
Geomagnetic storm
A geomagnetic storm is a temporary disturbance of the Earth's magnetosphere caused by a solar wind shock wave and/or cloud of magnetic field that interacts with the Earth's magnetic field. The increase in the solar wind pressure initially compresses the magnetosphere. The solar wind's magnetic field interacts with the Earth’s magnetic field and transfers an increased energy into the magnetosphere. Both interactions cause an increase in plasma movement through the magnetosphere (driven by increased electric fields inside the magnetosphere) and an increase in electric current in the magnetosphere and ionosphere.During the main phase of a geomagnetic storm, electric current in the magnetosphere creates a magnetic force that pushes out the boundary between the magnetosphere and the solar wind. The disturbance in the interplanetary medium that drives the storm may be due to a solar coronal mass ejection (CME) or a high speed stream (co-rotating interaction region or CIR) of the solar wind originating from a region of weak magnetic field on the Sun’s surface. The frequency of geomagnetic storms increases and decreases with the sunspot cycle. CME driven storms are more common during the maximum of the solar cycle, while CIR driven storms are more common during the minimum of the solar cycle.Several space weather phenomena tend to be associated with or are caused by a geomagnetic storm. These include: solar energetic Particle (SEP) events, geomagnetically induced currents (GIC), ionospheric disturbances that cause radio and radar scintillation, disruption of navigation by magnetic compass and auroral displays at much lower latitudes than normal. In 1989, a geomagnetic storm energized ground induced currents that disrupted electric power distribution throughout most of the province of Quebec and caused aurorae as far south as Texas.