A line charge lies on the x-axis between x = -L and x = 0. The line charge has nonuniform linear charge density λ(x) = x/L. 2(x) y P2 P1 x = -L (a) Find the electric potential at point P₁, a distance x to the right of the line charge. (b) Find the electric potential at point Po, a distance y above the right end of the line

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**Problem 6: Line Charge and Electric Potential**

A line charge lies on the x-axis between \( x = -L \) and \( x = 0 \). The line charge has a nonuniform linear charge density given by:

\[
\lambda(x) = \lambda_0 \frac{x}{L}
\]

**Diagram Description:**

The diagram illustrates a line charge located along the x-axis starting from \( x = -L \) to \( x = 0 \). The line is marked in blue and labeled with the linear charge density \( \lambda(x) \). Two points, \( P_1 \) and \( P_2 \), are marked on the graph:

- \( P_1 \) is located at a distance \( x \) to the right of the end of the line charge on the x-axis.
- \( P_2 \) is positioned vertically above the right end of the line charge, at a distance \( y \) on the y-axis.

**Questions:**

(a) Find the electric potential at point \( P_1 \), a distance \( x \) to the right of the line charge.

(b) Find the electric potential at point \( P_2 \), a distance \( y \) above the right end of the line charge.
Transcribed Image Text:**Problem 6: Line Charge and Electric Potential** A line charge lies on the x-axis between \( x = -L \) and \( x = 0 \). The line charge has a nonuniform linear charge density given by: \[ \lambda(x) = \lambda_0 \frac{x}{L} \] **Diagram Description:** The diagram illustrates a line charge located along the x-axis starting from \( x = -L \) to \( x = 0 \). The line is marked in blue and labeled with the linear charge density \( \lambda(x) \). Two points, \( P_1 \) and \( P_2 \), are marked on the graph: - \( P_1 \) is located at a distance \( x \) to the right of the end of the line charge on the x-axis. - \( P_2 \) is positioned vertically above the right end of the line charge, at a distance \( y \) on the y-axis. **Questions:** (a) Find the electric potential at point \( P_1 \), a distance \( x \) to the right of the line charge. (b) Find the electric potential at point \( P_2 \), a distance \( y \) above the right end of the line charge.
Expert Solution
Step 1

(a) The linear charge density is 

λx=λ0xL

The electric field is directed away from positive charge and is towards the negative charge. 

Let there be an element, dx, the electric field at point P2 is away from it. 

The diagram is 

Advanced Physics homework question answer, step 1, image 1

The electric field at point P2 is

dE2=.dxx2+y2xx2+y2i^+yx2+y2j^dE2=λ0xLkdxx2+y2xx2+y2i^+yx2+y2j^

 

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