4 ms·
They have to do with the behaviour of the electromagnetic field inside of different materials: https://en.wikipedia.org/wiki/Electric_displacement_field https:/
by c1ccccc1 6y ago
They have to do with the behaviour of the electromagnetic field inside of different materials: https://en.wikipedia.org/wiki/Electric_displacement_field https://en.wikipedia.org/wiki/Electric_displacement_field , https://en.wikipedia.org/wiki/Magnetic_field#The_H-field https://en.wikipedia.org/wiki/Magnetic_field#The_H-field
To get Maxwell's equations in a vacuum, just replace D with εₒE and replace H with B/μₒ.