1.

A high-temperature hydrogen plasma with a tempera: ture of 10^(5)K is placed in a placed in a magnetic field with induction of 0.1 T. Find the cyclotron radii of the ions and electrons (i.e. the radii of the orbits in which the positive ions andthe electrons move).

Answer»


Solution :Thermal motion of ions and of ELECTRONS in a magnetic field takes the form of motion along arcs of circles, whose radii may be computed with the aid of the formula used to compute the radius of the IONIC CYCLOTRON orbit. We can EXPRESS the momentum of the particle in terms of the gas TEMPERATURE: `p-sqrt(3mkT)` which given the cyclotron radius `R=(sqrt(3mkT))/(eB)`


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