Two infinite, very thin and flat sheets of insulating material carry electric charge o > 0 per unit area. The charge density is homogeneous. Sheet 1 lays d. The electric fields generated by the sheets at y 0, and sheet 2 at y independently, that is, when the other sheet is absent, are E, = {3 {. - for y > d 2€0 i for y >0 (1) 2€0 E2 for y <0 ' 2€0 for y < d 2€0* 1. Make a sketch of the system of two sheets, including the coordinate system. 2. Use the principle of superposition, E = E1+E2, to compute the electric field vector E generated by the two sheets (a) for y < 0, (b) for 0 < y < d, (c) and for d < y. 3. Plot Eg, Ey, E, and |E| = /E + E; + E? as a function of y.

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### Two Infinite, Very Thin Flat Sheets of Insulating Material

Two infinite, very thin, and flat sheets of insulating material carry an electric charge \( \sigma > 0 \) per unit area. The charge density is homogeneous. Sheet 1 lies at \( y = 0 \), and sheet 2 at \( y = d \).

The electric fields generated by the sheets independently are:

\[
\mathbf{E_1} = 
\begin{cases} 
\frac{\sigma}{2\varepsilon_0} \hat{\mathbf{j}} & \text{for } y > 0 \\ 
-\frac{\sigma}{2\varepsilon_0} \hat{\mathbf{j}} & \text{for } y < 0 
\end{cases}
\]

\[
\mathbf{E_2} = 
\begin{cases} 
\frac{\sigma}{2\varepsilon_0} \hat{\mathbf{j}} & \text{for } y > d \\ 
-\frac{\sigma}{2\varepsilon_0} \hat{\mathbf{j}} & \text{for } y < d 
\end{cases}
\]

### Tasks

1. **Sketch the System**: Draw the system of two sheets, and include the coordinate system.

2. **Compute the Electric Field Vector using Superposition**:
   - Use the principle of superposition, \( \mathbf{E} = \mathbf{E_1} + \mathbf{E_2} \), to find the electric field vector \( \mathbf{E} \) generated by the two sheets:
     - (a) for \( y < 0 \)
     - (b) for \( 0 < y < d \)
     - (c) for \( d < y \)

3. **Plot Electric Field Components**: Plot \( E_x \), \( E_y \), \( E_z \) and \( |\mathbf{E}| = \sqrt{E_x^2 + E_y^2 + E_z^2} \) as a function of \( y \). 

This exercise explores the properties of electric fields in the presence of charged flat sheets and applies the superposition principle to calculate the net field.
Transcribed Image Text:### Two Infinite, Very Thin Flat Sheets of Insulating Material Two infinite, very thin, and flat sheets of insulating material carry an electric charge \( \sigma > 0 \) per unit area. The charge density is homogeneous. Sheet 1 lies at \( y = 0 \), and sheet 2 at \( y = d \). The electric fields generated by the sheets independently are: \[ \mathbf{E_1} = \begin{cases} \frac{\sigma}{2\varepsilon_0} \hat{\mathbf{j}} & \text{for } y > 0 \\ -\frac{\sigma}{2\varepsilon_0} \hat{\mathbf{j}} & \text{for } y < 0 \end{cases} \] \[ \mathbf{E_2} = \begin{cases} \frac{\sigma}{2\varepsilon_0} \hat{\mathbf{j}} & \text{for } y > d \\ -\frac{\sigma}{2\varepsilon_0} \hat{\mathbf{j}} & \text{for } y < d \end{cases} \] ### Tasks 1. **Sketch the System**: Draw the system of two sheets, and include the coordinate system. 2. **Compute the Electric Field Vector using Superposition**: - Use the principle of superposition, \( \mathbf{E} = \mathbf{E_1} + \mathbf{E_2} \), to find the electric field vector \( \mathbf{E} \) generated by the two sheets: - (a) for \( y < 0 \) - (b) for \( 0 < y < d \) - (c) for \( d < y \) 3. **Plot Electric Field Components**: Plot \( E_x \), \( E_y \), \( E_z \) and \( |\mathbf{E}| = \sqrt{E_x^2 + E_y^2 + E_z^2} \) as a function of \( y \). This exercise explores the properties of electric fields in the presence of charged flat sheets and applies the superposition principle to calculate the net field.
Expert Solution
Step 1

Given two sheets are placed at y=0 and y=d

The sketch of the given system:

Advanced Physics homework question answer, step 1, image 1

 

 

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