# How Do You Find The Electric Field Of A Wire?

Find the vector that goes from each piece of the rod to the point where you want to find the electric field. Use the equation for the electric field to find the contribution to the total electric field due to each piece. Add up all the contributions to the electric field due to all the pieces.

## How to calculate the electric field due to a wire?

This charge element is located at a distance r of point P and its vertical coordinate is y. dq can be considered as a point charge, thus the electric field due to it at point P is: And the total electric field due to the wire is given by the following integral:

## What is the magnitude of an electric field?

A charged wire of negligible thickness has length 2L units and has a linear charge density λ. Consider the electric field E⃗ at the point P, a distance d above the midpoint of the wire. What is the magnitude E of the electric field at point P? Throughout this part, express your answers in terms of the constant k, defined by k=1/4πϵ 0.

## How to calculate the electric field at point P?

The electric field at point P can be found by applying the superposition principle to symmetrically placed charge elements and integrating. Solution Before we jump into it, what do we expect the field to “look like” from far away? Since it is a finite line segment, from far away, it should look like a point charge.

## What is the electric field of a negligible wire?

A charged wire of negligible thickness has length 2L units and has a linear charge density λ. Consider the electric field E⃗ at the point P, a distance d above the midpoint of the wire.

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