A disk of radius r= 70 cm has a uniform surface charge density o = 89.4 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 - m²/c² %3D Select one: O A. 1.53 B. 6.12 O C. 1.99 O D. 6.64 O E. 3.06
A disk of radius r= 70 cm has a uniform surface charge density o = 89.4 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 - m²/c² %3D Select one: O A. 1.53 B. 6.12 O C. 1.99 O D. 6.64 O E. 3.06
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Transcribed Image Text:A disk of radius r= 70 cm has a
uniform surface charge density
0 = 89.4 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 =
%3D
9×10° N • m²/C²
Select one:
O A. 1.53
О в. 6.12
OC. 1.99
O D. 6.64
ОЕ. 3.06
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