An electron with kinetic energy 2.9 kev moving along the positive direction of an x axis enters a region in which a uniform electric field of magnitude 7.5 kv/m is in the negative direction of the y axis. a uniform magnetic field is to be set up to keep the electron moving along the xaxis, and the direction of the field is to be chosen to minimize the required magnitude of the field. what is the magnitude of the magnetic field in mt?
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An electron with kinetic energy 2.9 kev moving along the positive direction of an x axis enters a re...
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