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Electric and Magnetic Fluid Study
by Light-Science.com
Magnetohydrodynamics (Pronounced mag NEE toh HY droh dy NAM iks; may be abbreviated MHD) is the field of study of electric and
magnetic effects in fluids conducting electricity. The fluids can be electrically charged gases-ionized; and, liquid metals.
One of the most fascinating branches of magnetohydrodynamics is studying the electric and magnetic effects on the sun and around Earth. They are the magnetic storms within Earth's magnetic
field, sunspots and the aurora, the glowing seen from the northern and southern poles. Scientists and physicists have given many theories on the causes of these effects. The theories are
based on the physical law that says the particle's path is ruled by the field's strength, and the particle's speed, charge and direction.
The second branch of magnetohydrodynamics is study of a method for generating electricity. It is based on the physical law describing voltage generated down an electrical conductor as it passes
through a magnetic field. the rule states that voltage depends on the strength of the magnetic field, the speed, length and direction of movement of the conductor through the field. It is this
law that is helping design generators which produce electricity from plasma (high-speed stream of ionized gas). The process is shooting a gas through a strong magnetic field. In this field it is
to produce a voltage between two electrodes (terminals of a battery or other electrical source). The difficulties of MHD generators has not been completely overcome, so someone needs to discover
a way to make them efficient and reliable.
Magnetometer
A magnetometer(Pronounced MAG nuh TAHM uh tuhr) is the device used to measure the strength of a magnetic field. Simple magnetometers
measure a magnetic field close to an electric motor. Simple magnetometers also measure the magnetic field of the poles of a magnet. The simple ones have a tiny coil of wire, which when the coil
is moved through a magnetic field will produce an electric voltage in the coil. This voltage will indicate the strength of the field.
Magneto
A magneto (Pronounced mag NEE toh) generates electric current. The magneto uses the principle that an electric current will be generated in a conductor which is moving through a magnetic
field. One part of this device is a powerful horseshoe magnet, but yet another uses a fine wire coil revolves between the two poles in front of the magnet. The coil sets up an alternating current
as it moves through the magnetic field.
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