•13 ao Figure 22-40 shows a proton (p) on the central axis through a disk with a uniform charge density due to excess electrons. The disk is seen from e, an edge-on view. Three of those elec- trons are shown: electron e, at the disk center and electrons e, at oppo- site sides of the disk, at radius R from -R ER- Figure 22-40 Problem 13. the center. The proton is initially at distance z = R =2.00 cm from the disk. At that location, what are the magnitudes of (a) the electric field E, due to electron e̟ and (b) the net electric field Esnet due to electrons e,? The proton is then moved to z = R/10.0. What then are the magnitudes of (c) E, and (d) Esnet at the proton's location? (e) From (a) and (c) we see that as the proton gets nearer to the disk, the magnitude of Ē increases, as expected. Why does the magnitude of Enet from the two side electrons decrease, as we see from (b) and (d)?

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•13 ao Figure 22-40 shows a proton
(p) on the central axis through a disk
with a uniform charge density due to
excess electrons. The disk is seen from e,
an edge-on view. Three of those elec-
trons are shown: electron e, at the
disk center and electrons e, at oppo-
site sides of the disk, at radius R from
-R ER-
Figure 22-40 Problem 13.
the center. The proton is initially at
distance z = R =2.00 cm from the disk. At that location, what are
the magnitudes of (a) the electric field E, due to electron e̟ and (b)
the net electric field Esnet due to electrons e,? The proton is then
moved to z = R/10.0. What then are the magnitudes of
(c) E, and (d) Esnet at the proton's location? (e) From (a) and (c)
we see that as the proton gets nearer to the disk, the magnitude of
Ē increases, as expected. Why does the
magnitude of Enet from the two side
electrons decrease, as
we see from
(b) and (d)?
Transcribed Image Text:•13 ao Figure 22-40 shows a proton (p) on the central axis through a disk with a uniform charge density due to excess electrons. The disk is seen from e, an edge-on view. Three of those elec- trons are shown: electron e, at the disk center and electrons e, at oppo- site sides of the disk, at radius R from -R ER- Figure 22-40 Problem 13. the center. The proton is initially at distance z = R =2.00 cm from the disk. At that location, what are the magnitudes of (a) the electric field E, due to electron e̟ and (b) the net electric field Esnet due to electrons e,? The proton is then moved to z = R/10.0. What then are the magnitudes of (c) E, and (d) Esnet at the proton's location? (e) From (a) and (c) we see that as the proton gets nearer to the disk, the magnitude of Ē increases, as expected. Why does the magnitude of Enet from the two side electrons decrease, as we see from (b) and (d)?
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