A disk of radius r= 70 cm has a uniform surface charge density \( \sigma \)= 112.6 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. 8.36 B. 2.50 C. 1.93 D. 7.71 E. 3.86

A disk of radius r= 70 cm has a uniform surface charge density \( \sigma \)= 112.6 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. 8.36 B. 2.50 C. 1.93 D. 7.71 E. 3.86

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter19: Electric Forces And Electric Fields

Section: Chapter Questions

Problem 73P: Two infinite, nonconducting sheets of charge are parallel to each other as shown in Figure P19.73....

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