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What else can I help you with?
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.
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.
Do circuits or electric currents have a magnetic field?
Yes, electric currents generate magnetic fields. This is described by Ampere's law in electromagnetism, stating that a current-carrying conductor produces a magnetic field around it. This relationship between electric currents and magnetic fields is fundamental to the operation of electromagnets and many electronic devices.
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.
Do black holes have magnetic fields and if so, how do they affect the surrounding environment?
Yes, black holes can have magnetic fields. These magnetic fields can affect the surrounding environment by influencing the behavior of matter and radiation near the black hole. The magnetic fields can cause particles to spiral around the black hole, emit radiation, and create powerful jets of material that shoot out into space.
When magnetic and blank fields both exist it is called an electromagnetic field?
Not quite. An electromagnetic field is formed when electric and magnetic fields oscillate together perpendicularly to each other. So, a situation where both magnetic and electric fields are present and oscillating in a coordinated manner is what creates an electromagnetic field.
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 sunspots related to prominence and solar flares?
The sun don't really need sunspots cause sunspots are related to several features on the sun's surface but prominences and solar flares need sunspots.Sunspots are the places where the magnetic field lines of the Sun poke out of the Sun to form loops.Where they poke out they are seens as prominences against the edge of the Sun's visible disk during an eclipse of the Sun.The looped magnetic field lines contain energy and are unstable, When they break and reconnect they release this energy suddenly and cause solar flares.
What is the magnetic susceptibility of aluminum?
The magnetic susceptibility of aluminum is very close to zero, meaning it is weakly attracted to magnetic fields. Aluminum is considered to be non-magnetic because its susceptibility is so low.
What mechanisms do astronomers believe is responsible for making the Sun's outer atmosphere so much hotter than its photosphere?
The mechanism that astronomers believe is responsible for making the Sun's outer atmosphere so much hotter than the photosphere is called the plasma jet. These jets of plasma are known as spicules.
Can copper block magnetism?
No, copper cannot block magnetism. It is not a magnetic material, so it will not interfere with magnetic fields or block them.
Can magnetic fields go through electrical tape?
Oh, dude, let me blow your mind real quick. So, technically, magnetic fields can still penetrate through electrical tape because it's not a magnetic material. It's like trying to stop a speeding train with a feather... not gonna work, my friend. So, yeah, the magnetic field will just breeze right through that tape like it's not even there.
Why aluminium filings can not be used to show the magnetic field?
Aluminum is not magnetic, so it does not interact with magnetic fields in a way that allows its orientation to be used to visualize the field lines. In contrast, iron filings are magnetic and align themselves along the field lines, making them a better material for demonstrating magnetic fields.
