Рет қаралды 1,098
Using Maxwell's equations to work out the shape of the field lines of both E (electric field) and D (displacement field) produced by a bar electret with uniform polarisation. This is the electrical analog of a bar magnet!
About the displacement field: • What is the electric d...
Surface charge & polarisation: • Polarisation and surfa...
About me: I studied Physics at the University of Cambridge, then stayed on to get a PhD in Astronomy. During my PhD, I also spent four years teaching Physics undergraduates at the university. Now, I'm working as a private tutor, teaching Physics & Maths up to A Level standard.
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