magnetic field
... Magnetic Field: A region where a moving charge can experience a magnetic force. The terms magnetism and magnetic field are synonymous with each other. ...
... Magnetic Field: A region where a moving charge can experience a magnetic force. The terms magnetism and magnetic field are synonymous with each other. ...
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ch-6 [Magnetism]
... What Does a Magnet Do? • A magnet exert a force of attraction or repulsion on magnetic materials only ...
... What Does a Magnet Do? • A magnet exert a force of attraction or repulsion on magnetic materials only ...
Small Dictionary of Magnetism
... field in opposition to an externally applied magnetic field. Unlike a ferromagnet, a diamagnet is not a permanent magnet. Diamagnets were first discovered when Sebald Justinus Brugmans observed in 1778 that bismuth and antimony were repelled by magnetic fields. The term diamagnetism was coined by Mi ...
... field in opposition to an externally applied magnetic field. Unlike a ferromagnet, a diamagnet is not a permanent magnet. Diamagnets were first discovered when Sebald Justinus Brugmans observed in 1778 that bismuth and antimony were repelled by magnetic fields. The term diamagnetism was coined by Mi ...
Magnetic fields
... Example : Measuring a magnetic field. A rectangular loop of wire hangs vertically as shown. A magnetic field B is directed horizontally, perpendicular to the wire, and points out of the page at all points. The magnetic field is very nearly uniform along the horizontal portion of wire ab (length l = ...
... Example : Measuring a magnetic field. A rectangular loop of wire hangs vertically as shown. A magnetic field B is directed horizontally, perpendicular to the wire, and points out of the page at all points. The magnetic field is very nearly uniform along the horizontal portion of wire ab (length l = ...
Magnets - Bari Science Lab
... running through its center. • The point of a compass needle is attracted to the south pole of a magnet. Opposite poles of magnets attract each other. • A compass needle points north because the magnetic pole of Earth that is closest to the geographic North Pole is a magnetic south pole. ...
... running through its center. • The point of a compass needle is attracted to the south pole of a magnet. Opposite poles of magnets attract each other. • A compass needle points north because the magnetic pole of Earth that is closest to the geographic North Pole is a magnetic south pole. ...
Why won`t my compass work the other side of the equator
... The Earth’s magnetic field is three dimensional in the same way as the field of any magnet. It is because of the Earth’s 3D magnetic field that the magnetic needle of a compass has to be weighted so that it floats horizontally in one hemisphere; but this means that the weight is on the wrong end ...
... The Earth’s magnetic field is three dimensional in the same way as the field of any magnet. It is because of the Earth’s 3D magnetic field that the magnetic needle of a compass has to be weighted so that it floats horizontally in one hemisphere; but this means that the weight is on the wrong end ...
11. Magnets and Magnetic Fields
... Intrigued by the fact that a flow of electricity could create magnetism, the great British experimentalist Michael Faraday decided to see if he could generate electricity using magnetism. He pushed a bar magnet in and out of a coil of wire and found an electric current being generated. The current s ...
... Intrigued by the fact that a flow of electricity could create magnetism, the great British experimentalist Michael Faraday decided to see if he could generate electricity using magnetism. He pushed a bar magnet in and out of a coil of wire and found an electric current being generated. The current s ...
Magnetosphere of Saturn
The magnetosphere of Saturn is the cavity created in the flow of the solar wind by the planet's internally generated magnetic field. Discovered in 1979 by the Pioneer 11 spacecraft, Saturn's magnetosphere is the second largest of any planet in the Solar System after Jupiter. The magnetopause, the boundary between Saturn's magnetosphere and the solar wind, is located at a distance of about 20 Saturn radii from the planet's center, while its magnetotail stretches hundreds of radii behind it.Saturn's magnetosphere is filled with plasmas originating from both the planet and its moons. The main source is the small moon Enceladus, which ejects as much as 1,000 kg/s of water vapor from the geysers on its south pole, a portion of which is ionized and forced to co-rotate with the Saturn’s magnetic field. This loads the field with as much as 100 kg of water group ions per second. This plasma gradually moves out from the inner magnetosphere via the interchange instability mechanism and then escapes through the magnetotail.The interaction between Saturn's magnetosphere and the solar wind generates bright oval aurorae around the planet's poles observed in visible, infrared and ultraviolet light. The aurorae are related to the powerful saturnian kilometric radiation (SKR), which spans the frequency interval between 100 kHz to 1300 kHz and was once thought to modulate with a period equal to the planet's rotation. However, later measurements showed that the periodicity of the SKR's modulation varies by as much as 1%, and so probably does not exactly coincide with Saturn’s true rotational period, which as of 2010 remains unknown. Inside the magnetosphere there are radiation belts, which house particles with energy as high as tens of megaelectronvolts. The energetic particles have significant influence on the surfaces of inner icy moons of Saturn.In 1980–1981 the magnetosphere of Saturn was studied by the Voyager spacecraft. As of 2010 it is a subject of the ongoing investigation by Cassini mission, which arrived in 2004.