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Author Question: Bert says that a charged particle in a vacuum can travel in a helix only if a uniform electric field ... (Read 108 times)

ashley

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on: Aug 6, 2020
Bert says that a charged particle in a vacuum can travel in a helix only if a uniform electric field and a uniform magnetic field are both present and both parallel to the axis of the helix. Stuart says that only a magnetic field with a component parallel to the axis of the helix is needed. Which one, if either, is correct, and why?

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Bert, because the charged particle's velocity can have a vertical component only if an electric field in the vertical direction is present.

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Stuart, because a component of velocity in the vertical direction is not changed by a vertical component of a magnetic field.

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Bert, because a component of velocity in the vertical direction is changed by a vertical component of a magnetic field.

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Stuart, because an electric field in the vertical direction would cause the particle to come to a complete stop.

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Neither, because particles cannot move in helical paths in the presence of magnetic and electric fields.
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
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Marked as best answer by ashley on Aug 6, 2020

ecox1012

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Reply #1 on: Aug 6, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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ashley

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Reply 2 on: Aug 6, 2020
Wow, this really help

elyse44

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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