---
title: "A point charge \\(+q\\) is fixed at the center of an uncharged, thick conducting spherical shell with inner radius \\(a\\) and outer radius \\(b\\). Which of the following graphs best represents the electric field magnitude \\(E\\) as a function of radial distance \\(r\\) from the central point charge?"
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url: "https://nerd-notes.com/ubq/118296/"
date_modified: "2026-08-04T08:08:46+00:00"
---

# A point charge \(+q\) is fixed at the center of an uncharged, thick conducting spherical shell with inner radius \(a\) and outer radius \(b\). Which of the following graphs best represents the electric field magnitude \(E\) as a function of radial distance \(r\) from the central point charge?

A point charge \(+q\) is fixed at the center of an uncharged, thick conducting spherical shell with inner radius \(a\) and outer radius \(b\). Which of the following graphs best represents the electric field magnitude \(E\) as a function of radial distance \(r\) from the central point charge?

![A 2D cross-sectional diagram showing a central point charge labeled +q at the origin. Surrounding the point charge is a concentric spherical shell with an inner circular boundary of radius a and an outer circular boundary of radius b. The conducting region between r = a and r = b is shaded light gray. Arrows indicating radii a and b extend from the center to the inner and outer boundaries, respectively. No other labels, lines, text, or axes appear.](https://nerd-notes.com/wp-content/uploads/ubq-frq-generated/stem-fig-1-1785830924-w1adMJ.jpg)

- **A.** Graph A
- **B.** Graph B
- **C.** Graph C
- **D.** Graph D

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/118296/*