E – mag 241
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P.3-8 A line charge of uniform density ?l in free space forms a semicircle of radius b.
Determine the magnitude and direction of the electric field intensity at the center of the
semicircle.
P.3-16 A finite line charge of length L carrying a uniform density ?l is coincident with the
x-axis.
a) Determine V in the plane bisecting the line charge.
b) Determine E from ?l directly by applying Coulombàlaw.
c) Check the answer in part b) with ??V.
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