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## Homework Statement

Consider the electric dipole seen in the notes. (a) Using integration, derive an expression for the magnitude of the electric field produced by the dipole at any point along the x-axis.

Electric Dipole: http://labman.phys.utk.edu/phys136/modules/m5/images/electr5.gif

## Homework Equations

Electric Field Equation, Differential Form $${d \vec E} =\frac 1 {4\pi\epsilon_0} \frac {dq} {r^2} \hat {\mathbf r}$$

Linear Charge Density $$ dq = \lambda dx$$

electric dipole: $$\vec p = q\vec d$$

## The Attempt at a Solution

I am completely confused as to how to get started or which equation to integrate to obtain the equation. I am aware that the y-components of the point charges cancel each other out, hence only the charge along the x-axis matters. As well as the general integration needed to be done to obtain the formula.$$\int_{-\infty}^{\infty} F $$ where F is the function to integrate.

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