dq dE dE2 a x. dEx dE dEL dE b Figure 23.3 (Example 23.2) A uniformly charged ring of radius a. (a) The field at Pon the x axis due to an element of charge dq. (b) The perpendicular component of the field at Pdue to segment 1 is canceled by the perpendicular component due to segment 2. a

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Chapter24: Electric Fields
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A ring of radius a carries a uniformly distributed positive total charge Q. Calculate the electric field due to the ring at a point P lying a distance x from its center along the central axis perpendicular to the plane of the ring (23.3a).

dq
dE dE2
a
x.
dEx
dE
dEL
dE
b
Figure 23.3 (Example 23.2) A uniformly charged ring of radius a. (a) The field at
Pon the x axis due to an element of charge dq. (b) The perpendicular component of
the field at Pdue to segment 1 is canceled by the perpendicular component due to
segment 2.
a
Transcribed Image Text:dq dE dE2 a x. dEx dE dEL dE b Figure 23.3 (Example 23.2) A uniformly charged ring of radius a. (a) The field at Pon the x axis due to an element of charge dq. (b) The perpendicular component of the field at Pdue to segment 1 is canceled by the perpendicular component due to segment 2. a
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