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The sun does not have 'so many magnetic fields.' It has 1 magnetic field that varies according to the distance from the sun.
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∙ 9y ago
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Sunpots and magnetic storms are common Why?
the sun's magnetic field is responsible for sun spots and "space weather". the sun is a ball of plasma, a gas comprised of ions and electrons rather than neutral atoms. because ions and electrons have charge, they attach themselves to magnetic field lines. the sun rotates, so the material in the sun is in motion, however the equator and poles rotate at different speeds. this causes the magnetic field (which is locked into the material) to twist and contort, occasionally snapping and rebounding manifesting as solar flares, sunspots, and various other phenomena.
Why does the number of sunspots vary?
The number of sunspots depends on the magnetic field of the Sun. This magnetic field changes with a period of roughly 22 years; twice in each of these magnetic cycles there is a maximum of sunspots. (So, the sunspot cycle has a period of about 11 years (on average), whilst the magnetic cycle has a period of about 22 years.)I am not sure whether the reasons for the magnetic cycles are completely understood, but you can check what is known so far, in the Wikipedia article on "Solar dynamo".
Electromagnets are created using what?
An electric current flowing in a wire creates a magnetic field around the wire. To concentrate the magnetic field of a wire, in an electromagnet the wire is wound into a coil, with many turns of wire lying side by side. The magnetic field of all the turns of wire passes through the center of the coil, creating a strong magnetic field there. A coil forming the shape of a straight tube (a helix) is called a solenoid; a solenoid that is bent into a donut shape so that the ends meet is called a toroid. Much stronger magnetic fields can be produced if a "core" of ferromagnetic material, such as soft iron, is placed inside the coil. The ferromagnetic core magnifies the magnetic field to thousands of times the strength of the field of the coil alone. This is called a iron-core electromagnet.
What is plasma in space?
== == A space plasma is one that can be found in space, sometimes called an astrophysical plasma. For example, the Sun is almost entirely plasma, a superheated state of matter, which under the influence of the Sun's magnetic and electric fields, escapes the Sun's gravity as the Solar Wind, moving out in all directions at very high speeds to fill the entire solar system and beyond. For more information, see: http://www.plasma-universe.com/
What does a sun spot look like?
Sunspots are regions on the solar surface that appear dark because they are cooler than the surrounding photosphere, typically by about 1500 K (thus, they are still at a temperature of about 4500 K, but this is cool compared to the rest of the photosphere). They are only dark in a relative sense; a sunspot removed from the bright background of the Sun would glow quite brightly. Some sunspots are as large as 50,000 miles across, and they move across the surface of the sun, contracting and expanding as they go. The sun has a magnetic field that is twisted around inside the Sun as it spins. There are places on the sun where this magnetic field rises up from below the sun's surface and pokes through, creating sunspots. Sunspots are magnetic and often have a north and south pole like a magnet. They come and go over the surface of the Sun and last from a few days to a few weeks. The period of time between maximum outbreaks of sunspots is about 9 to 14 years, with an average of 11 years. A link can be found below.
Do humans have a magnetic field?
No. The magnetic fields of objects such as planets are due to currents withing their molten interiors. Asteroids are completely solid and so do not have magnetic fields.
What do magnets have to with electricity?
Faraday showed that a wire passing through a magnetic field will produce electricity. This is how a generator works. Many windings of wire on an armature spin in a magnetic field. This makes electricity.
Will a compass always work?
No. I assume you mean a magnetic compass. A magnetic compass reacts to magnetic fields; the magnetic south pole of Earth is not exactly at the geographic north pole, so at some points of the Earth's surface, the magnetic compass will actually point south instead of north. Also, a magnetic compass will be influenced by other magnetic fields, e.g., current-carrying wires.No. I assume you mean a magnetic compass. A magnetic compass reacts to magnetic fields; the magnetic south pole of Earth is not exactly at the geographic north pole, so at some points of the Earth's surface, the magnetic compass will actually point south instead of north. Also, a magnetic compass will be influenced by other magnetic fields, e.g., current-carrying wires.No. I assume you mean a magnetic compass. A magnetic compass reacts to magnetic fields; the magnetic south pole of Earth is not exactly at the geographic north pole, so at some points of the Earth's surface, the magnetic compass will actually point south instead of north. Also, a magnetic compass will be influenced by other magnetic fields, e.g., current-carrying wires.No. I assume you mean a magnetic compass. A magnetic compass reacts to magnetic fields; the magnetic south pole of Earth is not exactly at the geographic north pole, so at some points of the Earth's surface, the magnetic compass will actually point south instead of north. Also, a magnetic compass will be influenced by other magnetic fields, e.g., current-carrying wires.
Is zinc a natural magnet?
Zinc is classed as a diamagnetic element. Diamagnetic means it weakly repels magnetic fields, so it is not magnetic.
How are magnets and motors related?
They both produce magnetic fields. So when together they attract.
How are astronomers able to explore the layers of the sun below the photosphere?
Sunspots, prominences and flares are all manifestations of magnetic fields, and these are indicators of processes going on deeper within the Sun. Also, just as earthquakes can help geologists study the Earth's interior, so can "sun-quakes" provide info about the Sun's interior.
Is that brain contains magnetic field?
Question is confused, but try this... The brain does generate electrical fields, and they do change, and since changing electrical fields always generate magnetic fields ... then YES. However ... the electrical fields of the brain are of very low magnitude and are relatively slow to change (as compared to any manufactured gadget), so the brains magnetic fields are weak and are considered minor The electric field is the source code for EEG's.
Prevents charged particles from the sun from reaching the surface?
The Earth is protected from the sun's charged particles by its magnetic field. The Earths magnetic field is generated within its molten iron core. Other examples of planets with magnetic fields include: Mercury, Jupiter, Ganymede (Ganymede is the largest moon in the solar system) , Saturn, Uranus and Neptune.Mercury has a relitivley weak magnetic field. It is so weak that the suns charged particles can reach the surface of Mercury. +++ Also the atmosphere.
How does a compass needle align its self?
The compass needle is magnetic, so it aligns itself with the magnetic poles. For more information on magnetic fields, see http://en.wikipedia.org/wiki/Magnetic_field
How does the Earth's magnetic field result from the convection currents?
Moving electric conductors generate magnetic fields. The molten portions of the Earth's core are conductive and there are so many free elctrons in the lava that electric currents are induced generating magnetic fields as the hotter iron and nickel rich liquefied minerals flow away from the center of the core to be replaced by cooler minerals.
Do Uranus and Neptunes magnetic fields interact?
why i don't think so......But it very well could be true...
How is electricity used to move a car?
Electricity can create magnetic fields. A magnetic field will attract or repel another magnetic field. That principle is used in the manufacture of electric motors. Magnetic fields are created in both an armature and an outside winding. When the magnetic fields are opposite, the armature tries to turn so that it is in line with the outside winding. Then the magnetic field changes polarity and the armature continues in the same direction, pushing the magnetic fields away. The process continues, repeatedly and quite rapidly to make an electric motor armature turn. The armature can be connected to a drive shaft or even directly to a wheel to make the vehicle move.
