(a) A velocity selector consists of electric and magnetic fields described by the expressions E = Ek and B = B ĵ, with B = 17.0 mT. Find the value of E (in kV/m) such that a 680 ev electron moving in the negative x-direction is undeflected. kV/m (b) What If? For the value of E found in part (a), what would the kinetic energy of a proton have to be (in MeV) for it to move undeflected in the negative x-direction? MeV

(a) A velocity selector consists of electric and magnetic fields described by the expressions E = Ek and B = B ĵ, with B = 17.0 mT. Find the value of E (in kV/m) such that a 680 ev electron moving in the negative x-direction is undeflected. kV/m (b) What If? For the value of E found in part (a), what would the kinetic energy of a proton have to be (in MeV) for it to move undeflected in the negative x-direction? MeV

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter11: Magnetic Forces And Fields

Section: Chapter Questions

Problem 28P: An electron in a TV CRT moves with a speed of 6.0107 m/s, in a direction perpendicular to Earth's...

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