A thin plastic rod of length 2.1 m is rubbed all over with wool, and acquires a charge of 56 nC, distributed uniformly over its surface. Calculate the magnitude of the electric field due to the rod at a location 6 cm from the midpoint of the rod. Do the calculation two ways, first using the exact formula for a rod of any length, and second using the approximate formula for a long rod. (a) exact formula E = = i 227.95 N/C

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A thin plastic rod of length 2.1 m is rubbed all over with wool, and acquires a charge of 56 nC, distributed uniformly over its surface.
Calculate the magnitude of the electric field due to the rod at a location 6 cm from the midpoint of the rod. Do the calculation two
ways, first using the exact formula for a rod of any length, and second using the approximate formula for a long rod.
(a) exact formula
E = = i
227.95
N/C
Transcribed Image Text:A thin plastic rod of length 2.1 m is rubbed all over with wool, and acquires a charge of 56 nC, distributed uniformly over its surface. Calculate the magnitude of the electric field due to the rod at a location 6 cm from the midpoint of the rod. Do the calculation two ways, first using the exact formula for a rod of any length, and second using the approximate formula for a long rod. (a) exact formula E = = i 227.95 N/C
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