25 A straight infinitely long cylinder of radius Ro 10 cm is

Last updated: 6/12/2023

25 A straight infinitely long cylinder of radius Ro 10 cm is uniformly charged with a surface charge density o 10 2 C m The cylinder serves as a source of electrons with the velocity of the emitted electrons perpendicular to its surface Electron velocity must be 105 m s to ensure that electrons can move away from the axis of the cylinder to a distance greater than 103