A disk of radius r= 70 cm has a uniform surface charge density o= 108.7 nC. Calculate the electric field (in units of kN/C) at point P that lies along the central perpendicular axis of the disk and a distance 30 cm from the center of the disk. use ke = 9x10° N-m?/c2 Select one: A. 1.86 B. 8.07 С. 3.73 D. 7.45 E. 2.42

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Chapter1: Units, Trigonometry. And Vectors
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e 9:01
53% 3
ll
A disk of radius r= 70 cm has
a uniform surface charge
density o= 108.7 nC. Calculate
the electric field ( in units of
kN/C) at point P that lies
along the central
perpendicular axis of the disk
and a distance 30 cm from the
center of the disk. use ke =
9x10° N-m?/C2
Select one:
A. 1.86
B. 8.07
С. 3.73
D. 7.45
E. 2.42
العربية
الإنجليزية
O
Transcribed Image Text:e 9:01 53% 3 ll A disk of radius r= 70 cm has a uniform surface charge density o= 108.7 nC. Calculate the electric field ( in units of kN/C) at point P that lies along the central perpendicular axis of the disk and a distance 30 cm from the center of the disk. use ke = 9x10° N-m?/C2 Select one: A. 1.86 B. 8.07 С. 3.73 D. 7.45 E. 2.42 العربية الإنجليزية O
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