(d) Approximating piece 7 as a point charge, what is the electric field at location A due only to piece 7? E = N/C (e) To get the net electric field at location A, we would need to calculate E due each of the 8 pieces, and add up these contributions. If we did that, which arrow above would best represent the direction of the net electric field at location A? ---Select--- v

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Answer part C, Part D, and Part E

A plastic rod 1.6 m long is rubbed all over with wool, and acquires a charge of -8e-08 coulombs. We choose the center of the rod to be the origin of our coordinate system, with the x-axis
extending to the right, the y-axis extending up, and the z-axis out of the page. In order to calculate the electric field at location A = < 0.7, 0, 0 > m, we divide the rod into 8 pieces, and
approximate each piece as a point charge located at the center of the piece.
h
2
3
4
g
A
6.
j zero magnitude
8
(a) What is the length of one of these pieces?
l = 0.2
(b) What is the location of the center of piece number 7?
< 0, – 0.5,0 >
m.
(c) How much charge is on piece number 7? (Remember that the charge is negative.)
Transcribed Image Text:A plastic rod 1.6 m long is rubbed all over with wool, and acquires a charge of -8e-08 coulombs. We choose the center of the rod to be the origin of our coordinate system, with the x-axis extending to the right, the y-axis extending up, and the z-axis out of the page. In order to calculate the electric field at location A = < 0.7, 0, 0 > m, we divide the rod into 8 pieces, and approximate each piece as a point charge located at the center of the piece. h 2 3 4 g A 6. j zero magnitude 8 (a) What is the length of one of these pieces? l = 0.2 (b) What is the location of the center of piece number 7? < 0, – 0.5,0 > m. (c) How much charge is on piece number 7? (Remember that the charge is negative.)
(d) Approximating piece 7 as a point charge, what is the electric field at location A due only to piece 7?
N/C
(e) To get the net electric field at location A, we would need to calculate E due each of the 8 pieces, and add up these contributions. If we did that, which arrow above would best
represent the direction of the net electric field at location A?
--Select-- v
Transcribed Image Text:(d) Approximating piece 7 as a point charge, what is the electric field at location A due only to piece 7? N/C (e) To get the net electric field at location A, we would need to calculate E due each of the 8 pieces, and add up these contributions. If we did that, which arrow above would best represent the direction of the net electric field at location A? --Select-- v
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