A circular plastic disk with radius R = 2.00 cm has a uniformly distributed charge Q =
Question:
A circular plastic disk with radius R = 2.00 cm has a uniformly distributed charge Q = + (2.00 x 106)e on one face. A circular ring of width 30 pm is centered on that face, with the center of that width at radius r = 0.50 cm. In coulombs, what charge is contained within the width of the ring?
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From dA 2r dr which can be thought of as the differential of A nr and dq 0 dA f...View the full answer
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Related Book For 
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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