21.29 . CP An electron is pro- Figure E21.29jected with an initial speed vo =2.00 x 10° m/s into the uniformfield between two parallel plates(Fig. E21.29). Assume that the fieldbetween the plates is uniform anddirected vertically downward andthat the field outside the plates is zero. The electron enters the fieldat a point midway between the plates. (a) If the electron just missesthe upper plate as it emerges from the field, find the magnitudeof the electric field. (b) Suppose that the electron in Fig. E21.29is replaced by a proton with the same initial speed vo. Would theproton hit one of the plates? If not, what would be the magnitudeand direction of its vertical displacement as it exits the regionbetween the plates? (c) Compare the paths traveled by the electronand the proton, and explain the differences. (d) Discuss whether itis reasonable to ignore the effects of gravity for each particle.K 2.00 cm-个1.00 cm

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21.29 ** CP An electron is pro- Figure E21.29 jected with an initial speed vo = 2.00 x 10° m/s into the uniform field between two parallel plates (Fig. E21.29). Assume that the field between the plates is uniform and directed vertically downward and that the field outside the plates is zero. The electron enters the fiel at a point midway between the plates. (a) If the electron just misse the upper plate as it emerges from the field, find the magnitud of the electric field. (b) Suppose that the electron in Fig. E21.2 is replaced by a proton with the same initial speed vo. Would th proton hit one of the plates? If not, what would be the magnitud and direction of its vertical displacement as it exits the regio between the plates? (c) Compare the paths traveled by the electro - 2.00 cm- 1.00 cm

21.29 ** CP An electron is pro- Figure E21.29 jected with an initial speed vo = 2.00 x 10° m/s into the uniform field between two parallel plates (Fig. E21.29). Assume that the field between the plates is uniform and directed vertically downward and that the field outside the plates is zero. The electron enters the fiel at a point midway between the plates. (a) If the electron just misse the upper plate as it emerges from the field, find the magnitud of the electric field. (b) Suppose that the electron in Fig. E21.2 is replaced by a proton with the same initial speed vo. Would th proton hit one of the plates? If not, what would be the magnitud and direction of its vertical displacement as it exits the regio between the plates? (c) Compare the paths traveled by the electro - 2.00 cm- 1.00 cm

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter19: Electric Forces And Electric Fields

Section: Chapter Questions

Problem 32P

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