0=0 E=2€₁ 26₁ 여 [E = olk A As described in class, the electric field contribution from just the positive, red colored plate because of Use + to denote directions to the everywhere to its left is right and to denote directions to the left. Assume the symbol Q refers to a positive charge.

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### Image Transcription and Explanation

The image illustrates two parallel plates, each with an electric charge. The left plate has a negative charge density denoted as \(-\sigma\), and the right plate has a positive charge density denoted as \(\sigma\). 

#### Diagram Explanation:

- **Left Plate (Negative Plate):**
  - Charge density: \(-\sigma\)
  - The electric field (\(E\)) contribution from this plate is directed to the right and given by the formula:
    \[
    E = \frac{\sigma}{2\varepsilon_0}
    \]

- **Right Plate (Positive Plate):**
  - Charge density: \(\sigma = \frac{Q}{A}\)
  - The entire electric field (\(E\)) from this plate is also pointing to the right, calculated as:
    \[
    E = \frac{\sigma}{2\varepsilon_0}
    \]

- **Net Electric Field (\(\Sigma E\)):**
  - The net electric field between the plates is:
    \[
    \Sigma E = \frac{\sigma}{\varepsilon_0}
    \]

#### Accompanying Text:

"As described in class, the electric field contribution from just the positive, red colored plate everywhere to its left is ______ because of ______. Use + to denote directions to the right and - to denote directions to the left. Assume the symbol Q refers to a positive charge."

#### Multiple Choice Options:

1. \(\frac{\sigma}{2\varepsilon_0}\), superposition
2. 0, superposition
3. \(\frac{\sigma}{2\varepsilon_0}\), superposition
4. \(\frac{\sigma}{2\varepsilon_0}\), Gauss's law
5. \(\frac{\sigma}{2\varepsilon_0}\), Gauss's law

This setup relates to understanding the principles of electric fields generated by charged plates, and how these principles apply using superposition or Gauss's law.
Transcribed Image Text:### Image Transcription and Explanation The image illustrates two parallel plates, each with an electric charge. The left plate has a negative charge density denoted as \(-\sigma\), and the right plate has a positive charge density denoted as \(\sigma\). #### Diagram Explanation: - **Left Plate (Negative Plate):** - Charge density: \(-\sigma\) - The electric field (\(E\)) contribution from this plate is directed to the right and given by the formula: \[ E = \frac{\sigma}{2\varepsilon_0} \] - **Right Plate (Positive Plate):** - Charge density: \(\sigma = \frac{Q}{A}\) - The entire electric field (\(E\)) from this plate is also pointing to the right, calculated as: \[ E = \frac{\sigma}{2\varepsilon_0} \] - **Net Electric Field (\(\Sigma E\)):** - The net electric field between the plates is: \[ \Sigma E = \frac{\sigma}{\varepsilon_0} \] #### Accompanying Text: "As described in class, the electric field contribution from just the positive, red colored plate everywhere to its left is ______ because of ______. Use + to denote directions to the right and - to denote directions to the left. Assume the symbol Q refers to a positive charge." #### Multiple Choice Options: 1. \(\frac{\sigma}{2\varepsilon_0}\), superposition 2. 0, superposition 3. \(\frac{\sigma}{2\varepsilon_0}\), superposition 4. \(\frac{\sigma}{2\varepsilon_0}\), Gauss's law 5. \(\frac{\sigma}{2\varepsilon_0}\), Gauss's law This setup relates to understanding the principles of electric fields generated by charged plates, and how these principles apply using superposition or Gauss's law.
Expert Solution
Step 1

Gauss law: According to this law. surface integral of the electric field along a closed surface is equal to  1εo times the charge stored in the volume covered by that closed surface. Mathematically it can be written as,

E·dA = Qεo

where E is the electric field, Q is the charge, εo is the permittivity of free space, and dA is the area vector perpendicular to the surface.

 

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