The figure below represents a graph of the electric potential in a region of space versus position x, where the electric field is parallel to the x axis. Draw a graph of the x component of the electric field versus x in this region. V (V) 20 10 x (cm) 2. 4

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**Educational Website Text**

**Understanding Electric Potential and Electric Field**

The graph illustrated below represents the electric potential \(V\) in a region of space as a function of position \(x\). The electric field is oriented parallel to the \(x\)-axis. Your task is to draw a graph representing the component of the electric field versus \(x\) for this region.

**Graph Details:**

- **Axes:**
  - The x-axis is labeled as \(x\) (cm), with a range from 0 to 4 cm.
  - The y-axis is labeled as \(V\) (V), representing electric potential in volts, with a range from 0 to 30 V.

- **Graph Shape:**
  - The potential starts at 0 V when \(x = 0\) cm.
  - It increases linearly to 20 V at \(x = 1\) cm.
  - The potential remains constant at 20 V between \(x = 1\) cm and \(x = 3\) cm.
  - It then decreases linearly back to 0 V at \(x = 4\) cm.

When interpreting this graph, consider that the electric field \(E\) can be determined from the electric potential \(V\) by understanding that \(E = -\frac{dV}{dx}\), where \(\frac{dV}{dx}\) is the slope of the potential \(V\) as a function of \(x\).

Remember, the electric field will have distinct behaviors in different sections based on the slope:

1. **From 0 to 1 cm:** The slope is positive, indicating a negative electric field direction.
2. **From 1 to 3 cm:** The slope is zero, indicating the electric field is zero.
3. **From 3 to 4 cm:** The slope is negative, indicating a positive electric field direction.
Transcribed Image Text:**Educational Website Text** **Understanding Electric Potential and Electric Field** The graph illustrated below represents the electric potential \(V\) in a region of space as a function of position \(x\). The electric field is oriented parallel to the \(x\)-axis. Your task is to draw a graph representing the component of the electric field versus \(x\) for this region. **Graph Details:** - **Axes:** - The x-axis is labeled as \(x\) (cm), with a range from 0 to 4 cm. - The y-axis is labeled as \(V\) (V), representing electric potential in volts, with a range from 0 to 30 V. - **Graph Shape:** - The potential starts at 0 V when \(x = 0\) cm. - It increases linearly to 20 V at \(x = 1\) cm. - The potential remains constant at 20 V between \(x = 1\) cm and \(x = 3\) cm. - It then decreases linearly back to 0 V at \(x = 4\) cm. When interpreting this graph, consider that the electric field \(E\) can be determined from the electric potential \(V\) by understanding that \(E = -\frac{dV}{dx}\), where \(\frac{dV}{dx}\) is the slope of the potential \(V\) as a function of \(x\). Remember, the electric field will have distinct behaviors in different sections based on the slope: 1. **From 0 to 1 cm:** The slope is positive, indicating a negative electric field direction. 2. **From 1 to 3 cm:** The slope is zero, indicating the electric field is zero. 3. **From 3 to 4 cm:** The slope is negative, indicating a positive electric field direction.
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