Question

What is plasma state and bec?what are their applications?

Answer 1

Plasma is the fourth state of matter. It is essentially a very hot, ionized gas. It is what makes up the sun and most of the universe. Plasma is so hot (millions of Kelvin) that it cannot be contained by physically. Instead, magnetic confinement is frequently used. One such method of confinement, the method used on ZaP, is called a Z-pinch.

Applications of Plasmas
Fusion

Nuclear fusion is the process of recombining nuclei to form different nuclei and release vast amounts of energy. This is the process that powers the sun. If we can harness it, nuclear fusion has the potential to provide us with nearly limitless amounts of clean energy. As such, it is often described as the Holy Grail of plasma physics.

There are three conditions necessary for nuclear fusion: high temperatures ( to about 107 K), high density, and prolonged stability. The high temperature requirement places us in the regime of plasmas. While experiments have attained these high temperatures, the primary difficulty is in achieving a sufficiently high combination of density and stability.