In a cathode ray tube (CRT) used in older television sets and oscilloscopes, a beam of electrons is steered to different

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In A Cathode Ray Tube Crt Used In Older Television Sets And Oscilloscopes A Beam Of Electrons Is Steered To Different 1 (682.87 KiB) Viewed 39 times

In a cathode ray tube (CRT) used in older television sets and oscilloscopes, a beam of electrons is steered to different placed on a phosphor screen, which glows at locations hit by electrons. The CRT is evacuated, so there are few gas molecules present for the electrons to collide with. Electric forces are used to accelerate electrons of mass m to a speed "O after which they pass between positively and negatively charged metal plates which deflect the electron in the vertical direction (upward in the diagram, or downward if the sign of the charges on the plates is reversed). , +++++++++++ - - - - Kd -* While an electron is between the plates, it experiences a uniform vertical force F, but when the electron is outside the plates there is negligible force on it. The gravitational force on the electron is also negligibly small in this situation. The length of the metal plates is d, and the phosphor screen is a distance L from the metal plates. Where does the electron hit the screen? (That is, what is yf?) (Enter your response in terms of the variables mentioned in the problem. Use "v0" to represent vo.) Yf= Submit Answer Tries 0/8