College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter18: Electric Charge And Electric Field
Section: Chapter Questions
Problem 9CQ: Figure 18.43 shows the charge distribution in a water molecule, which is called a polar molecule...
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Part A a d B are incorrect.

What is the potential energy of an electron at point B in the figure?

What is the potential energy of an electron at point C in the figure?

**Diagram Description:**

The image shows a hand-drawn diagram on lined paper, illustrating a spherical charge distribution and its surrounding points of interest. The central sphere has a positive charge of \(2.0 \, \text{nC}\) (nanocoulombs). There are three labeled points in the diagram: A, B, and C.

1. **Point A**:
   - Located on the boundary of a smaller circle surrounding the central charged sphere.
   - The radius of this smaller circle is not explicitly labeled, but it includes the central charge.

2. **Point B**:
   - Located at a distance of 1.0 cm from the center of the charged sphere.
   - This point is inside the smaller circle but outside the immediate perimeter of the central charged sphere.

3. **Point C**:
   - Located on the boundary of a larger circle with a radius of 2.0 cm from the central charge.
   - This larger circle encompasses both points A and B.

The '+' symbol within the central sphere indicates it is positively charged.

The distances of 1.0 cm (to point B) and 2.0 cm (to point C) are clearly marked along with directional arrows pointing from the center to these respective points.

**Analysis:** 
This diagram might be used to explain the concepts of electric fields and potentials around a point charge, where:

- **Electric Field (E):** Explores how the electric field intensity varies at different distances (e.g., points A, B, and C) from a charged particle.
- **Potential (V):** Could be examined in similar contexts, showing potential differences at these various points.

**Potential Application:**
This type of diagram is typically employed in physics and electrical engineering education to demonstrate Coulomb's Law, the concept of electric field lines, or Gauss's Law applications in electrostatics.
Transcribed Image Text:**Diagram Description:** The image shows a hand-drawn diagram on lined paper, illustrating a spherical charge distribution and its surrounding points of interest. The central sphere has a positive charge of \(2.0 \, \text{nC}\) (nanocoulombs). There are three labeled points in the diagram: A, B, and C. 1. **Point A**: - Located on the boundary of a smaller circle surrounding the central charged sphere. - The radius of this smaller circle is not explicitly labeled, but it includes the central charge. 2. **Point B**: - Located at a distance of 1.0 cm from the center of the charged sphere. - This point is inside the smaller circle but outside the immediate perimeter of the central charged sphere. 3. **Point C**: - Located on the boundary of a larger circle with a radius of 2.0 cm from the central charge. - This larger circle encompasses both points A and B. The '+' symbol within the central sphere indicates it is positively charged. The distances of 1.0 cm (to point B) and 2.0 cm (to point C) are clearly marked along with directional arrows pointing from the center to these respective points. **Analysis:** This diagram might be used to explain the concepts of electric fields and potentials around a point charge, where: - **Electric Field (E):** Explores how the electric field intensity varies at different distances (e.g., points A, B, and C) from a charged particle. - **Potential (V):** Could be examined in similar contexts, showing potential differences at these various points. **Potential Application:** This type of diagram is typically employed in physics and electrical engineering education to demonstrate Coulomb's Law, the concept of electric field lines, or Gauss's Law applications in electrostatics.
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