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

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

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter6: Gauss's Law

Section: Chapter Questions

Problem 70P: A point charge q=5.01012 C is placed at the center of a spherical conducting shell of inner radius...

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I also tried rounding to one decimal and that was still wrong plz help
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