Magnetism
... Electricity and magnetism are related. This is called electromagnetism An electric current flowing through a wire gives rise to a magnetic field whose direction depends upon the direction of the current. Coiling a conductor around a piece of soft iron will produce a powerful magnet. This is temporar ...
... Electricity and magnetism are related. This is called electromagnetism An electric current flowing through a wire gives rise to a magnetic field whose direction depends upon the direction of the current. Coiling a conductor around a piece of soft iron will produce a powerful magnet. This is temporar ...
Lecture-16
... current in a straight wire. If the length of the wire approaches infinity in both directions, we find We can determine the direction of the magnetic field due to current-carrying wire using the right hand. ...
... current in a straight wire. If the length of the wire approaches infinity in both directions, we find We can determine the direction of the magnetic field due to current-carrying wire using the right hand. ...
Magnetism 1. Which of the following does not create a
... 12. Can a magnet attract a piece of iron that is not magnetized? Why or why not? D) Yes; the domains in the iron are induced into alignment and one pole is attracted to the magnet. 13. You have an unmagnetized piece of iron. B) Stroking it with a permanent magnet will align the domains and magnetize ...
... 12. Can a magnet attract a piece of iron that is not magnetized? Why or why not? D) Yes; the domains in the iron are induced into alignment and one pole is attracted to the magnet. 13. You have an unmagnetized piece of iron. B) Stroking it with a permanent magnet will align the domains and magnetize ...
Document
... belts consist of charged particles surrounding the Earth in doughnut-shaped regions The particles are trapped by the Earth’s magnetic field The particles spiral from pole to pole ...
... belts consist of charged particles surrounding the Earth in doughnut-shaped regions The particles are trapped by the Earth’s magnetic field The particles spiral from pole to pole ...
File
... are close to the Earth’s magnetic poles, people living in those places are more likely to see auroras than are people living in Florida and Mexico which are far away from the Earth’s magnetic poles. 7. Which magnetic pole is closest to the geographic North pole? ___magnetic south pole___ 8. Is the m ...
... are close to the Earth’s magnetic poles, people living in those places are more likely to see auroras than are people living in Florida and Mexico which are far away from the Earth’s magnetic poles. 7. Which magnetic pole is closest to the geographic North pole? ___magnetic south pole___ 8. Is the m ...
Worksheet 8.2 - Magnetic Forces on Wires and Charges
... 6. What magnetic field strength is needed to exert a force of 1.0 x 10—15 N on an electron traveling 2.0 x 107 m/s? 7. A solenoid 0.20 m long has 600 turns of wire. What current must be passed through the solenoid to produce a magnetic field of 2.0 x 10-2 T? 8. A magnetic resonance imaging machine ( ...
... 6. What magnetic field strength is needed to exert a force of 1.0 x 10—15 N on an electron traveling 2.0 x 107 m/s? 7. A solenoid 0.20 m long has 600 turns of wire. What current must be passed through the solenoid to produce a magnetic field of 2.0 x 10-2 T? 8. A magnetic resonance imaging machine ( ...
Worksheet - Magnetic Forces on Wires and Charges
... 6. What magnetic field strength is needed to exert a force of 1.0 x 10—15 N on an electron traveling 2.0 x 107 m/s? 7. A solenoid 0.20 m long has 600 turns of wire. What current must be passed through the solenoid to produce a magnetic field of 2.0 x 10-2 T? 8. A magnetic resonance imaging machine ( ...
... 6. What magnetic field strength is needed to exert a force of 1.0 x 10—15 N on an electron traveling 2.0 x 107 m/s? 7. A solenoid 0.20 m long has 600 turns of wire. What current must be passed through the solenoid to produce a magnetic field of 2.0 x 10-2 T? 8. A magnetic resonance imaging machine ( ...
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.