Problem 1 Inside a vacuum tube, an electron is projected between two parallel plates. The plates are separated by 3 cm and are 10 cm long. Equal but opposite electric charges are placed on the plates, so that there is a uniform electric field between the plates and no field outside of the plates. The electron is projected in the center of the positive plate and its initial velocity is 4.5 x 10 m/s straight towards the center of the negative plate. Find the magnitude of the electric field such that the electron just barely misses touching the negative plate before it turns around goes directly back out of the hole. 10cm. Зст

Problem 1 Inside a vacuum tube, an electron is projected between two parallel plates. The plates are separated by 3 cm and are 10 cm long. Equal but opposite electric charges are placed on the plates, so that there is a uniform electric field between the plates and no field outside of the plates. The electron is projected in the center of the positive plate and its initial velocity is 4.5 x 10 m/s straight towards the center of the negative plate. Find the magnitude of the electric field such that the electron just barely misses touching the negative plate before it turns around goes directly back out of the hole. 10cm. Зст