solar flares.
an amplifier which is self saturated is called self saturated magnetic amp
They are colder - by about 1200 degrees Celsius - than the rest of the Sun.-----------------------------------------------------------------------------------------------------They are darker because they are relatively cooler than the surrounding area. They are cooler because where a sunspot happens tightly bunched together magnetic field lines poke out of the surface of the Sun. This region of intense magnetic activity, inhibits convection motion and thus less heat is welling up from the Sun's interior.
Sunspots: sunspots are cooler and darker regions of the Sun's photosphere created by magnetic fields piercing that region of the Sun's visible surface. (2) Plages: plages are bright regions in the chromosphere associated with magnetic fields in the process of emerging from the Sun. (3) Flares: flares are ejections of large volumes of gas. These gases sometimes head our way, causing auroras and radio interference. A flare is a much less massive ejection than a coronal mass ejection (4) Filaments, and (5) Prominences: filaments and prominences are the same feature seen from different angles. They are loops of magnetic fields carrying gases aloft. (6) Coronal holes: coronal holes are dark, and therefore cooler, portions of the corona that appear over sunspots. They are called 'holes' because these cooler areas of the corona act as conduits for gases to flow out of the sun. (7) Coronal mass ejections: coronal mass ejections and flares are ejections of large volumes of gas. These gases sometimes head our way, causing auroras and radio interference. For all of the features of the active sun listed and described above, magnetic fields play important roles in determining the activity of the active sun.
Moving a conductor through a magnetic field will produce alternatinc current (AC).
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.
solar flares.
No. A sunspot is a slightly cooler area of the surface associated with magnetic disturbances within the Sun. The eruptions of gas are called prominences, and they are related to the phenomenon called solar flares.
prominences
prominences
These magnetic disturbances are known as magnetic storms.
Solar Flares.
Solar flares.
The active site
It is called erosion and it acts on everything including active volcanoes. However active volcanoes can usually rebuild with more eruptions faster than they erode.
No. The large arch-like eruptions your thinking of are called solar flares. Eclipses are alignments of the Earth, Moon, and Sun. Sunspots are also different. Sunspots are areas on the Sun that are of a different colors that do cause magnetic interruptions of cell phone use, Internet, etc... Solar flares (Arch-like eruptions) cause changes in temperature and usually bring extreme heats.
Igneous rock that flowed out of the surface if lava; lava blown out of explosive eruptions is Volcanic Ash, or Tuff.
inside whats called earths ring of fire where there has been the most volcano eruptions