Potential Energy of dipole in external electric field

Thread starter kartikwat
Start date Jul 8, 2014
Tags

Dipole Electric Electric field Energy Field Potential Potential energy

Jul 8, 2014

kartikwat

Why do we take Θ=90° for calculation of potential energy

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Jul 9, 2014

schrodingerscat11

Hi! It you give a sample problem with detailed parameters, people are more likely to answer. :)

Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...

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