ch23-p059 - Q ) within the conducting material, there must...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
59. The initial field (evaluated “just outside the outer surface” which means it is evaluated at r = 0.20 m) is related to the charge q on the hollow conductor by Eq. 23-15. After the point charge Q is placed at the geometric center of the hollow conductor, the final field at that point is a combination of the initial and that due to Q (determined by Eq. 22-3). (a) q = 4 πε ο r 2 E initial = + 2.0 × 10 9 C. (b) Q = 4 πε ο r 2 ( E final E initial ) = 1.2 × 10 9 C. (c) In order to cancel the field (due to
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Q ) within the conducting material, there must be an amount of charge equal to Q distributed uniformly on the inner surface. Thus, the answer is +1.2 10 9 C. (d) Since the total excess charge on the conductor is q and is located on the surfaces, then the outer surface charge must equal the total minus the inner surface charge. Thus, the answer is 2.0 10 9 C 1.2 10 9 C = +0.80 10 9 C....
View Full Document

Ask a homework question - tutors are online