The magnetic field affects the plasma transport to the chamber wall, changing the ionization balance and the plasma spatial distribution. In collisionless fusion plasma, a magnetic field may cause low frequency instabilities that affect the plasma transport and the plasma global confinement.

A magnetic field can be created by running electricity through a wire. All magnetic fields are created by moving charged particles. Even the magnet on your fridge is magnetic because it contains electrons that are constantly moving around inside.

Magnetic field lines connecting different plasma populations act as channels for the transport of plasmas, currents, electric fields, and waves between the two environments. When a flowing magnetized plasma strikes a solid object, an atmosphere, or a magnetosphere, strong interactions of various types can occur.

The ions and electrons of a plasma interacting with the Earth’s magnetic field generally follow its magnetic field lines. Plasmas exhibit more complex second-order behaviors, studied as part of magnetohydrodynamics.

More exotic sources of plasma include particles in nuclear fusion reactors and weapons, but everyday sources include the Sun, lightning, fire, and neon signs. Other examples of plasma include static electricity, plasma balls, St. Elmo’s fire, and the ionosphere.

The answer is the interaction with the magnetic field. The force initially results in an acceleration parallel to itself, but the magnetic field deflects the resulting motion in the drift direction.

Being made of charged particles, plasmas can do things gases cannot, like conduct electricity. Speaking of electrostatic interactions, because particles in a plasma – the electrons and ions – can interact via electricity and magnetism, they can do so at far greater distances than an ordinary gas.

A plasma may be produced in the laboratory by heating a gas to an extremely high temperature, which causes such vigorous collisions between its atoms and molecules that electrons are ripped free, yielding the requisite electrons and ions. A similar process occurs inside stars.

The component of velocity parallel to the lines is unaffected, and so the charges spiral along the field lines. If field strength increases in the direction of motion, the field will exert a force to slow the charges (and even reverse their direction), forming a kind of magnetic mirror.

The velocity component perpendicular to the magnetic field creates circular motion, whereas the component of the velocity parallel to the field moves the particle along a straight line. The pitch is the horizontal distance between two consecutive circles. The resulting motion is helical.

The reason is that the magnetic field doesn’t affect the speed is because the magnetic field applies a force perpendicular to the velocity. Hence, the force can’t do work on the particle. So it can not change the speed.

The magnetic force will not change the speed of a moving electron because the magnetic force is always perpendicular to the velocity. A moving electron in a uniform magnetic field will undergo uniform circular motion.

Magnets in electric generators turn mechanical energy into electricity, while some motors use magnets to convert electricity back into mechanical work. Mines use magnetic sorting machines to separate useful metallic ores from crushed rock. In food processing, magnets remove small metal bits from grains and other food.

A charged particle moving without acceleration produces an electric as well as a magnetic field. It produces an electric field because it’s a charge particle. But when it is at rest, it doesn’t produce a magnetic field.

Magnetism is caused by the motion of electric charges. Every substance is made up of tiny units called atoms. The magnetic field is the area around a magnet that has magnetic force. All magnets have north and south poles. Opposite poles are attracted to each other, while the same poles repel each other.