---
title: "The potential difference \\(V\\) across a nonlinear capacitive device is measured as a function of the charge \\(q\\) stored on it, as shown in the graph. What is the total electrostatic energy stored in the device when the stored charge reaches \\(10.0\\text{ }\\mu\\text{C}\\)?"
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url: "https://nerd-notes.com/ubq/121163/"
date_modified: "2026-08-23T04:58:20+00:00"
---

# The potential difference \(V\) across a nonlinear capacitive device is measured as a function of the charge \(q\) stored on it, as shown in the graph. What is the total electrostatic energy stored in the device when the stored charge reaches \(10.0\text{ }\mu\text{C}\)?

The potential difference \(V\) across a nonlinear capacitive device is measured as a function of the charge \(q\) stored on it, as shown in the graph. What is the total electrostatic energy stored in the device when the stored charge reaches \(10.0\text{ }\mu\text{C}\)?

![A 2D Cartesian graph with a horizontal axis labeled q (\mu\text{C}) and a vertical axis labeled V (\text{V}). The horizontal axis has major tick marks and numerical labels at 0, 2.0, 4.0, 6.0, 8.0, and 10.0. The vertical axis has major tick marks and numerical labels at 0, 3.0, 6.0, 9.0, 12.0, 15.0, and 18.0. A fine dashed coordinate grid aligns with all axis ticks. A thick solid line starts at the origin (0, 0), extends with a constant positive slope to the point (4.0, 6.0), and then continues with a steeper constant positive slope to the point (10.0, 18.0). Solid black circular points mark the vertices at (0, 0), (4.0, 6.0), and (10.0, 18.0). No other labels, lines, text, or curves appear.](https://nerd-notes.com/wp-content/uploads/ubq-frq-generated/stem-graph-1-1787461100-xjmW2k.jpg)

- **A.** \(12\text{ }\mu\text{J}\)
- **B.** \(48\text{ }\mu\text{J}\)
- **C.** \(72\text{ }\mu\text{J}\)
- **D.** \(84\text{ }\mu\text{J}\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/121163/*