a) A velocity selector consists of electric and magnetic fields described by the expressions E = Ek and B = Bĵ, with B = 25.0 mT. Find the value of E (in kV/m) such that a 770 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 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 = Bĵ, with B = 25.0 mT. Find the value of E (in kV/m) such that a 770 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 move undeflected in the negative x-direction? MeV

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.

Question

(a)
A velocity selector consists of electric and magnetic fields described by the expressions E = Ek and B = B ĵ, with
B = 25.0 mT. Find the value of E (in kV/m) such that a 770 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

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