Electric Field Due to an Electric Dipole

The electric field has the same magnitude and direction at every point within the field.

Mentally rotate the pattern around the axis of symmetry, which is a vertical line through both particles.

The electric field vector at any given point must be tangent to the field line at that point and in the same direction.

<p>A closer spacing between field lines indicates a larger field magnitude.</p> Signup and view all the answers

<p>It is a way of measuring the field at points close to the sheet relative to its size and to avoid edges.</p> Signup and view all the answers

<p>The field vectors and lines must be outward and perpendicular to the disk.</p> Signup and view all the answers

<p>E = (s / (2 * epsilon_0)) * (1 / (1 + (z^2 / R^2))^(3/2))</p> Signup and view all the answers

<p>The equation for the electric field on the central axis of a uniformly charged ring can be integrated to find the equation for the electric field on the central axis of a uniformly charged disk.</p> Signup and view all the answers

<p>The relationship is given by E = (s / (2 * epsilon_0)) * (1 / (1 + (z^2 / R^2))^(3/2), where z is the distance along the axis, R is the disk radius, and s is the surface charge density.</p> Signup and view all the answers

<p>The electric field of a charged disk falls off as 1 / (1 + (z^2 / R^2))^(3/2), while the electric field of an infinite sheet falls off as 1 / (1 + (z^2))^2.</p> Signup and view all the answers

<p>The surface charge density directly influences the magnitude of the electric field at different points along the central axis of the disk.</p> Signup and view all the answers

<p>The electric field lines point away from the disk if the charge is positive and towards the disk if the charge is negative.</p> Signup and view all the answers

<p>An electric dipole consists of two particles with equal charge magnitudes but opposite signs separated by a distance.</p> Signup and view all the answers

<p>The nearer particle with charge $+q$ sets up a field in the positive z direction, while the farther particle with charge $-q$ sets up a field in the negative z direction.</p> Signup and view all the answers

<p>The electric field at point P is along the z-axis, with positive direction away from the nearer particle and negative direction toward the farther particle.</p> Signup and view all the answers

<p>The net electric field at point P is the vector sum of the electric fields set up by each particle.</p> Signup and view all the answers

<p>The electric field vectors are along the same axis, making it convenient to indicate the directions with plus and minus signs, similar to forces along a single axis.</p> Signup and view all the answers

<p>The z-axis is commonly used as an axis of symmetry around which the electric dipole pattern can be rotated.</p> Signup and view all the answers