Does formal definition of polarization density not exist?(griffith’s electrodynamics)
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I've noticed before that griffith's book shyed away from stating some formula for polarization density in this chapter, by just saying its equal to "dipole moment per unit volume" and not something like dp/dv which would be wrong btw since we are not interested in change of dipoles or something like that but like amount of dipole moments in infinitesimal volume. When i googled it, different sources sayed different things, some said it's equal to dp/dv and some p/dv. I also noticed same problem in start of the book on formula of electric field produced by continious charge distribution Where formula integrates with respect to dq, when we aren't interested in change of charge, but charge in infinitesimal region difference. submitted by /u/jemala4424 |
