The electric field a distance z from the center of a uniformly charged solid disk of radius R is (Edisk) z = 1 2€0 1 √z²+R² where n = Q/(R²) is the (constant) surface charge density of the disk. What is the limit of (Edisk) where z << R and why? O It is equal to n/(20), the electric field near an infinite plane, since the disk looks like an infinite plane for points very close to the disk. It is equal to n/(2€0), the electric field near an infinite plane, since the disk looks like a point charge for points far away from the disk. It is equal to n/(20), the electric field of a point charge, since the disk looks like a point charge when very far away from the disk. It is equal to Q/(4π€02²), the electric field of a point charge, since the disk looks like an infinite plane when very close to the disk. It is equal to Q/(47€022), the electric field of a point charge, since the disk looks like a point charge when very close to the disk. I DON'T KNOW YET

The electric field a distance z from the center of a uniformly charged solid disk of radius R is (Edisk) z = 1 2€0 1 √z²+R² where n = Q/(R²) is the (constant) surface charge density of the disk. What is the limit of (Edisk) where z << R and why? O It is equal to n/(20), the electric field near an infinite plane, since the disk looks like an infinite plane for points very close to the disk. It is equal to n/(2€0), the electric field near an infinite plane, since the disk looks like a point charge for points far away from the disk. It is equal to n/(20), the electric field of a point charge, since the disk looks like a point charge when very far away from the disk. It is equal to Q/(4π€02²), the electric field of a point charge, since the disk looks like an infinite plane when very close to the disk. It is equal to Q/(47€022), the electric field of a point charge, since the disk looks like a point charge when very close to the disk. I DON'T KNOW YET

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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Concept explainers

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.

Question

The electric field a distance z from the center of a uniformly
charged solid disk of radius R is
(Edisk) z
=
n
2€0
1
Z
/z²+R²
where n = Q/(TR²) is the (constant) surface charge density of
the disk.
What is the limit of (Edisk)z where z << R and why?
It is equal to n/(2€0), the electric field near an
infinite plane, since the disk looks like an
infinite plane for points very close to the disk.
It is equal to n/(2€0), the electric field near an
infinite plane, since the disk looks like a point
charge for points far away from the disk.
It is equal to n/(2€0), the electric field of a
point charge, since the disk looks like a point
charge when very far away from the disk.
It is equal to Q/(47€oz²), the electric field of a
point charge, since the disk looks like an
infinite plane when very close to the disk.
It is equal to Q/(47€oz²), the electric field of a
point charge, since the disk looks like a point
charge when very close to the disk.
I DON'T KNOW YET

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