Dipole Electric Field Drop: Understanding 1/r^3 Decay - Physics …
Aug 28, 2009 · In the near field, we take the summation of the fields from the two charges, but in the far-field, the two charges can be approximated as a single dipole moment. This simplifies …
Deriving the formula for a magnetic dipole field - Physics Forums
Aug 16, 2016 · The magnetic dipole is a microscopic loop of current I and area A with the magnetic field B computed from Biot-Savart's equation, while the electric dipole is a …
Force on a dipole in a non-uniform electric field - Physics Forums
Aug 24, 2014 · In summary, it seems that the two formulae for the force are equivalent if we assume the dipole moment is constant, but if the dipole moment varies then the F=∇(p.E) …
Curl of an electric dipole field - Physics Forums
Dec 18, 2009 · The field of an electric dipole is the electric field that is produced by these charges. In this context, the curl of an electric dipole field is not necessarily zero. The curl of a vector …
Divergence of an Electric Field due to an ideal dipole - Physics …
May 1, 2019 · Instead, try to focus on how the gradient and divergence act on ##\phi##. Also, Cartesian coordinates may or may not be the best choice for computing the Laplace operator …
Equation for magnetic field line of dipole - Physics Forums
Sep 19, 2011 · In summary, the conversation discusses the equation for a dipole magnetic field in spherical coordinates and how to show that the equation for a magnetic field line is r = R sin^2 …
Torque acting on dipole - Physics Forums
Jan 6, 2025 · Calling the charge configuration shown a dipole is also somewhat misleading. Yes, the leading contribution to the far field is the dipole moment, but it is not a pure dipole - it also …
Magnetic Dipole Field from a Loop of Wire - Physics Forums
May 24, 2017 · I am trying to understand the magnetic dipole field via loop of wire. The above pictures show how this problem is typically setup and how the field lines are typically shown. …
Reproducing dirac-delta function in electric dipole field - Physics …
Nov 22, 2014 · In summary, the electric field inside the shell is uniform and the potential inside the shell is the sum of the potential outside the shell and the dipole moment of the charge …
Electric Dipole Field and Energy Calculation for Point x on the X-Axis
Sep 19, 2010 · FAQ: Electric Dipole Field and Energy Calculation for Point x on the X-Axis What is an electric dipole? An electric dipole is a pair of equal and opposite charges that are …