a. Plasma accelerator (railgun) it consists of two parallel massive conductors (rails) lying in a plane perpendicular to the magnetic field of induction B. An electric discharge is ignited in hydrogen between points A and C. The current I in the discharge is kept constant. Under the action of a magnetic field, the discharge region (plasma clot) moves, accelerating to the ends of the rails and breaking off from them. What is the velocity of a plasma clot if its mass is m? Distance between rails l. The length of the section where the plasma accelerates is equal to L.
b. Solve the problem for the case B = 1 T, l = 0.1 m, L = 1 m, I = 10 A; the plasma bunch contains 10¹³ hydrogen ions.