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Author Question: How much work must we do on an electron to move it from point A, which is at a potential of +50V, to ... (Read 24 times)

mp14

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on: Oct 11, 2019

Question 1

At a distance d from a point charge Q, the energy density in its electric field is u. If we now go to a distance d/2 from the charge, what is the energy density at the new location?
◦ 8u
◦ u
◦ 2u
◦ 16u
◦ 4u

Question 2

How much work must we do on an electron to move it from point A, which is at a potential of +50V, to point B, which is at a potential of -50 V, along the semicircular path shown in the figure? Assume the system is isolated from outside forces. (e = 1.60 × 10-19 C)



◦ -1.60 × 10-17 J
◦ 1.60 × 10-17 J
◦ 1.6 J
◦ -1.6 J
◦ This cannot be determined because we do not know the distance traveled.
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Marked as best answer by mp14 on Oct 11, 2019

verrinzo

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Reply #1 on: Oct 11, 2019
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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mp14

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Reply #2 on: Oct 11, 2019
Thanks


verrinzo

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Reply #3 on: Oct 11, 2019
Welcome :)


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