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Electricity and Magnetism

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Symmetry and the Dierection of the Electric Field

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A uniform positive linear charge density is shaped in the form of a semicircle centered on the point P as shown in the figure below.

At the point P, what is the direction of the electric field?

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A

a

B

b

C

c

D

d

E

e

F

f

G

g

H

h