3) An old style cathode-ray tube (CRT) TV has a beam of electrons passing thru a uniform electric field whose magnitude is designed to make the beam strike the inside screen at a specific point. If the electric field is directed upward, what should its strength be in order to deflect the electrons up by 10 cm? Assume the distance to the screen is 30 cm and the horizontal electron velocity is 2x107 m/s.
3) An old style cathode-ray tube (CRT) TV has a beam of electrons passing thru a uniform electric field whose magnitude is designed to make the beam strike the inside screen at a specific point. If the electric field is directed upward, what should its strength be in order to deflect the electrons up by 10 cm? Assume the distance to the screen is 30 cm and the horizontal electron velocity is 2x107 m/s.
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