Question

27 A glass tube filled with gas has electrodes at each end. When a sufficiently high potential difference is applied bet ween the two electrodes, the gas ionizes; electrons move towardthé pos itive elećtrode, and positive ions move toward the negatve elec- trode. a)What is the current in.a hydrogen discharge if, in each sccond, 3:60 x 10' electrons and 1.15 x 10 protons move in opposite directions through a cross section of the tube? b) What is the direction of the current?

Answer 1